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(IAAC) Star clusters not included in Lund catalog
Hello,
I'm an advanced amateur ( for a while.. ) that does some
research through the internet.
Recently, I collected a large ammount of star cluster data,
and the results is presented here as a list of obscure clusters
( not in the 5 th ed. of Lynga's catalog ).
As you'll see, I included some of my own discoveries, also
with comments, as well as the results of my e-mail contacts
with the astronomers Brent Archinal and Brian Skiff.
Please, let me know about your impressions of these clusters
( including my discoveries! ).
Here's the list :
--------------------------------------------------------------
Table 1 - Clusters in the ESO/Uppsala Survey ( Lauberts )
--------------------------------------------------------------
Designation Coord(2000.0) Cns Diam Tr.Type
--------------------------------------------------------------
ESO 245-SC 09 015342-45573 Phe 12' III 1
ESO 485-SC 20 045004-25574 Eri 5' II 2
ESO 252-SC 14 051600-45142 Pic 3.0' III 2
ESO 486-SC 45 051643-24023 Lep 3.0' I 3
ESO 486-SC 54 052011-26029 Lep 5' II 2
ESO 424-SC 25 054949-32279 Col 8' III 3
ESO 425-SC 06 060450-29110 Col 5' II 2
ESO 489-SC 01 060459-26437 Lep 10' III 3
ESO 425-SC 15 061435-29225 Cma 5' III 3
ESO 426-SC 26 063618-30513 Cma 4.0' II 2
ESO 309-SC 03 065039-42234 Pup 6' II 2
ESO 427-SC 32 070614-30100 Cma 10' III 3
ESO 367-SC 10 071705-35168 Pup 3.0' III 3
ESO 559-SC 02 071805-18357 Cma 1.2' I 3
ESO 559-SC 13 072842-20495 Pup 10' x 5' II 2
ESO 429-SC 02 073323-28112 Pup 5' I 2
ESO 429-SC 05 073702-32119 Pup 1.2'x 0.9' III 3
ESO 493-SC 03 073945-27176 Pup n/a I 2
ESO 429-SC 13 074108-30443 Pup n/a II 2
ESO 368-SC 11 074422-34387 Pup 1.0' III 3
ESO 258-SC 01 074547-46428 Pup 10' III 3
ESO 368-SC 14 074703-32581 Pup 4.0' III 3
ESO 311-SC 14 074924-42423 Pup 6' III 2
ESO 123-SC 26 075230-60198 Car 16' x 13' III 3
ESO 494-SC 09 075916-27351 Pup 3.0' I 2
ESO 561-SC 05 075919-22415 Pup 7' x 5' II 2
ESO 311-SC 21 080143-41363 Pup 4.0' III 3
ESO 430-SC 09 080224-29466 Pup 0.8'
ESO 430-SC 14 080337-31256 Pup 5' II 3
ESO 430-SC 18 080652-30502 Pup 12' III 2
ESO 312-SC 03 082431-41177 Pup 2.0' III 3
ESO 312-SC 04 082653-41150 Vel 1.0' II 2
ESO 370-SC 13 082709-34423 Pyx 2.0' II 1
ESO 313-SC 03 083141-41475 Vel 2.5' II 3
ESO 370-SC 17 083151-36124 Pyx 3.0' III 3
ESO 432-SC 03 084253-27524 Pyx 8' II 2
ESO 313-SC 11 084343-37428 Vel 4.0' III 2
ESO 313-SC 12 084353-40139 Vel 10' I 2
ESO 211-SC 01 084711-52045 Vel 4.0' III 3
ESO 211-SC 03 085135-50153 Vel 2.5' II 3
ESO 371-SC 25 085300-35286 Pyx 3.0' I 2
ESO 260-SC 17 090449-46025 Vel 7' III 3
ESO 165-SC 09 090515-55573 Vel 15' x 10' II 2
ESO 166-SC 04 091030-53532 Vel 4.0' III 2
ESO 261-SC 03 091123-47024 Vel 10' x 7' III 3
ESO 211-SC 09 091644-50171 Vel 2.0' I 2
ESO 314-SC 14 091941-38070 Vel 10' x 5' III 2
ESO 261-SC 07 092421-44423 Vel 33' x 24' III 3
ESO 315-SC 14 093525-39320 Ant 3.0'
ESO 435-SC 09 095533-28592 Ant 15' II 2
ESO 435-SC 17 095845-30546 Ant 4.0' II 1
ESO 092-SC 05 100314-64452 Car 5' I 2
ESO 435-SC 33 100354-32032 Ant 3.0' II 1
ESO 435-SC 48 100935-28215 Ant 4.0' I 2
ESO 436-SC 02 101403-29114 Ant 5' I 2
ESO 092-SC 18 101458-64367 Car 5' I 2
ESO 062-SC 08 102139-69201 Car 5' x 3.0' II 2
ESO 062-SC 11 103855-69020 Car 6' II 3
ESO 094-SC 05 113921-63282 Cen
ESO 437-SC 61 104802-29234 Hya 4.0' I 2
ESO 128-SC 16 105341-58144 Car 10' x 5' III 2
ESO 265-SC 01 110058-45210 Vel 4.0'x 2.0' III 1
ESO 502-SC 19 110807-26438 Hya 3.0' I 3
ESO 570-SC 12 111212-21192 Crt 13' I 3
ESO 093-SC?08 111941-65132 Car 1.0'
ESO 129-SC 19 112111-58139 Cen 5' II 2
ESO 129-SC 32 114409-61049 Cen 4.0' II 2
ESO 130-SC 13 122318-59396 Cru 10' III 3
ESO 064-SC 05 122433-68280 Mus 10' II 2
ESO 131-SC 09 122938-57526 Cru 5'
ESO 442-SC 04 123405-29246 Hya 10' II 1
ESO 065-SC 03 125137-69438 Mus 6' III 2
ESO 324-SC 15 132343-41532 Cen 4.0' I 2
ESO 065-SC 07 132917-71161 Mus 4.0'x 1.5' III 2
ESO 383-SC 10 133129-35039 Cen 5' II 2
ESO 132-SC 14 133631-62128 Cen
ESO 445-SC 74 135439-31575 Cen 2.5' II 3
ESO 097-SC 15 141529-64367 Cir 12' x 10' II 3
ESO 021-SC 06 141552-78302 Aps 9' x 6' III 3
ESO 175-SC 06 141832-56551 Cen 18' x 11' III 2
ESO 447-SC 29 143727-29247 Hya 12' x 8' II 3
ESO 134-SC 12 144446-59099 Cir 4.0' III 1
ESO 008-SC 06 145512-83254 Oct 10' II 1
ESO 329-SC 02 152732-41032 Lup 8' x 7' III 2
ESO 099-SC 06 152948-64518 TrA 8' x 3.0' III 2
ESO 275-SC 01 155504-46009 Nor 6' II 2
ESO 389-** 05 155750-36123 Lup 1.8'x 1.0'
ESO 226-SC 06 162414-51091 Nor 4.0' III 2
ESO 137-SC 23 162427-61445 TrA 5' II 2
ESO 277-SC 04 164025-43445 Sco 1.5' I 3
ESO 518-SC 03 164704-25487 Sco 5' I 2
ESO 137-SC 43 164825-61456 Ara 6' x 4.0' II 2
ESO 332-SC 08 165443-40425 Sco 10' I 2
ESO 332-SC?11 165601-40468 Sco 3.0'x 1.0'
ESO 332-SC?13 165640-40350 Sco 4.0'x 1.0'
ESO 043-SC 13 170405-74205 Aps 8' x 4.0' III 2
ESO 587-SC 04 170422-19273 Oph 2.5' I 1
ESO 332-SC 20 170455-38192 Sco 7' III 3
ESO 278-SC 02 170614-46073 Ara 2.0'x 7.0' II 3
ESO 332-SC 22 170729-40488 Sco 7' x 5' III 3
ESO 392-SC 13 172652-34412 Sco 10' II 2
ESO 334-SC 02 173657-42136 Sco 2.0' II 2
ESO 139-SC 13 173741-58078 Ara 5' III 2
ESO 393-SC 12 173840-35391 Sco 2.0' III 2
ESO 393-SC 15 174333-34131 Sco 5' III 3
ESO 520-SC?20 174336-24431 Oph 0.7'
ESO 456-SC 05 175302-29536 Sgr
ESO 456-SC 09 175352-32290 Sco 6' III 3
ESO 456-SC 29 175835-32012 Sgr 0.8' III 3
ESO 229-SC 02 175935-51411 Ara 3.0' III 2
ESO 589-SC 26 180214-21549 Sgr 2.5' II 1
ESO 139-SC 54 180441-58314 Pav 6' II 3
ESO 280-SC 06 180905-46252 Ara 1.5'
ESO 521-SC 38 180925-24318 Sgr 3.0' I 1
ESO 456-SC 72 181229-29346 Sgr 1.4' III 2
ESO 522-SC 05 181253-24218 Sgr 4.0' II 2
ESO 335-SC 05 181607-41038 CrA 1.0'x 7.0' III 3
ESO 522-SC 16 181905-27078 Sgr
ESO 281-SC 24 183959-44119 CrA 6' II 3
ESO 524-SC 01 185639-26578 Sgr 6' x 2.0' III 2
ESO 397-SC 01 190409-33231 Sgr 6' III 2
ESO 282-SC 26 191352-42368 CrA 20' x 15' III 3
ESO 231-SC 30 191652-51295 Tel 20' III 3
ESO 141-SC 47 191802-57543 Pav 7' x 5' II 2
ESO 337-SC 23 191913-37373 Sgr 5' x 3.0' III 3
ESO 525-SC 08 192717-23348 Sgr 5' II 1
ESO 461-SC 38 200454-30210 Sgr 4.0' II 1
ESO 026-SC 02 202638-80002 Oct 8' III 3
ESO 464-SC 09 205936-29233 Mic 4.0' I 2
ESO 236-SC 07 212128-51487 Ind 30' x 20' II 3
--------------------------------------------------------------
Table 2 - Less known NGC/IC clusters
--------------------------------------------------------------
Desig Coord(2000.0) Cns
-------------------------------------------------------------
IC 2156 060451+24096 Gem Just n of IC 2157
IC 1023 143225-35482 Cen
NGC 6588 182033-63485 Pav
comment : There are another unstudied NGC cluster candidates
in the B. Archinal monograph No 1 of the Webb Society
( 229 misidentified or missing NGC clusters ). The
three objects above aren't included in the mentioned
monograph.
------------------------------------------------------------------------
Table 3 - Other possible clusters
------------------------------------------------------------------------
Desig Coordinates (2000.0) References Comments
------------------------------------------------------------------------
PWM78 1 01 08 04.8 +65 38 51 1
Wat 1 04 18 36.4 +52 51 28 5 Prob an asterism
(vPoor)
AM 0430-392 04 32 24 -39 17.6 12 Few eF st surr
12thm star
Wat 2 05 28 01 +40 22.3 5 vPoor ( only 5
st )
KAS97 1 06 08 48 +24 19.9 21 Superimpo on
Messier35
SSWZ94 1 07 20.9 +01 48 19 eF, Be-like.
difficult
Wat 7 07 26 08.0 -15 05 39 6 Associated to F
neby
FM80 1 07 30.2 -15 50 6
AM 2 07 38 46 -33 50.6 3,14,16,17,20,22 Old OC, not Glob
Wat 3 07 55 06.4 -25 21 54 5
SSWZ94 2 08 25.5 -39 38 19 eF, Be-like.
difficult
SSWZ94 3 10 41.5 -55 18 19 eF, Be-like.
difficult
SSWZ94 4 12 14.1 -63 36 19 eeF cl. Possible
Glob
AM 1353-265 13 56 21 -27 10.0 12 eeF gr of stars
(???)
TJ 20 17 33.6 -29 19 7 poor,loose.
asterism
PWM78 2 17 58 39.4 -05 04 21 1 eF Possible
globular!!
C1814-190 18 16 51 -19 01.8 8 same as
C1814-191ab ???
C1814-191a 18 16 59.6 -19 04 33 15
C1814-191b 18 17 24.6 -19 05 10 15
SSWZ94 5 19 39.6 +25 39 19
T85 1 19 49 04 +27 17.9 9,11 S Vulpeculae
cluster
SSWZ94 6 19 51.0 +32 15 19
Platais 1 21 30 02 +48 58.6 2,10,18
PMH79 1 22 18.8 +63 16 4,13 Associated to
nebulosity
PWM78 3 23 08 10.8 +60 52 28 1
PWM78 4 23 50 53.0 +62 19 25 1
Bibliographical References :
1 1977stcl.symp...39P 00/1977
PFLEIDERER, J.; WEINBERGER, R.; MROSS, R.
Some new possible very red and faint star clusters
2 1979ATsir1049....4P 00/1979
PLATAIS, I.
BD +48 3398 = SVS 2299 : a new classical Cepheid a
possible member of an anonymous galactic cluster.
3 1979ApJ...227L.103M 01/1979
MADORE, B. F.; ARP, H. C.
Three new faint star clusters
4 1979RMxAA...4..331P 08/1979
PISMIS, P.; MORENO, M. A.; HASSE, I.
Internal motions in H II regions.
VI - S 140 and the associated CO cloud
[ See p 333-334 Section IV - The
embedded stars; A new open cluster ]
5 1979A&AS...38..197M 11/1979
MOFFAT, A. F. J.; JACKSON, P. D.; FITZGERALD, M. P.
The rotation and structure of the galaxy beyond
the solar circle. I - Photometry and spectroscopy
of 276 stars in 45 H II regions and other young
stellar groups toward the galactic anticentre
6 1980MNRAS.193..761F 00/1980
FITZGERALD, M. P.; MOFFAT, A. F. J.
Luminous stars beyond the solar circle -
Investigation of a galactic field at l=231deg
7 1980Msngr..20....6T 00/1980
TERZIAN, A.; JU, K. H.
A photometric study of the bright cloud B in
Sagittarius - Part three
8 1984PASP...96..422T 06/1984
TURNER, D. G.
The optical companions of the long-period Cepheid WZ
Sagittarii - Remains of an open cluster?
9 1985JRASC..79..175T 08/1985
TURNER, D. G.
A newly-discovered open cluster surrounding
the 68 1/2-day Cepheid S Vulpeculae
10 1986NInfo..61...89P 00/1986
PLATAIS, I.
On the reality of an anonymous galactic cluster.
Alpha = 21 28 3, delta = 48 46.
11 1986JRASC..80..166T 08/1986
TURNER, D. G.; LEONARD, P. J. T.; MADORE, B. F.
Photometry of the S Vul cluster
12 1987AMCat.C......1A 00/1987
ARP, H. C.; MADORE, B. F.
Catalogue of Southern Peculiar Galaxies and Associations
13 1988NASAR1202....1L 00/1988
1988QB851.L44...... 06/1988
LEISAWITZ, DAVID
Catalog of open clusters and associated interstellar matter
14 1988A&AS...74..299G 08/1988
GRATTON, R. G.; ORTOLANI, S.
Deep photometry of globular clusters.
VIII - The highly reddened cluster AM-2
15 1993ApJS...85..119T 03/1993
TURNER, DAVID G.; VAN DEN BERGH, SIDNEY;
YOUNGER, P. F.; DANKS, T. A.; FORBES, DOUGLAS
A search for OB associates near southern long-period
Cepheids. IV - XY Carinae, GT Carinae, WZ Sagittarii,
and SW Velorum
16 1993AAS...18311008J 12/1993
JANES, K. A.; PHELPS, R. L.; MONTGOMERY, K. A.
The Oldest Open Clusters
17 1994AJ....107.1079P 03/1994
PHELPS, RANDY L.; JANES, KENNETH A.; MONTGOMERY, KENT A.
Development of the Galactic disk: A search for the oldest
open clusters
18 1994AJ....107.1796T 05/1994
TURNER, DAVID G.; MANDUSHEV, GEORGI I.; FORBES, DOUGLAS
Galactic clusters with associated Cepheid variables.
4: C2128+488 (Anon. Platais) and V1726 Cygni
19 1994AJ....107.2101S 06/1994
SAURER, W.; SEEBERGER, R.; WEINBERGER, R.; ZIENER, R.
Berkeley 93: A distant star cluster nestled
in a dust cloud
[See Appendix - P 2106.]
20 1995A&A...300..726O 08/1995
ORTOLANI, S.; BICA, E.; BARBUY, B.
BH 176 and AM-2: globular or open clusters?
21 1997AN....318..253K 00/1997
KHARCHENKO, N.; ANDRUK, V.; SCHILBACH, E.
Schmidt survey in the Galactic anticentre direction.
1. Investigation of open clusters
22 1997AJ....113..729L 02/1997
LEE, MYUNG GYOON
UBVI CCD Photometry of the Remote Old Open Cluster AM-2
-------------------------------------------------------------
Table 4 - Loden discoveries not in Lund cat.
-------------------------------------------------------------
Desig Coord(2000.0) Cns Ref
-------------------------------------------------------------
Loden 1 100503-55484 Vel 3
Loden 28 10032 -5809 Car 4
Loden 46 1023 -54.8 Vel 2
Loden 89 10292 -5647 Vel 1
Loden 172 102827-60402 Car 1
Loden 189 1050 -56.4 Vel 1
Loden 213 103614-61508 Car 3
Loden 306 110608-61059 Car 3
Loden 402 113252-60425 Cen 3
Loden 481 115147-61216 Cen 1
Loden 624 1227 -61.7 Cru 2
Loden 682 124717-60393 Cru 3
Loden 694 125301-60462 Cru 3
Loden 733 2
Loden 821 132421-59439 Cen 3
Loden 915 13341 -5915 Cen 4
Loden 995 135441-64569 Cir 1
Loden 1378 143023-58150 Cen 1
Loden 2045 151024-58473 Cir 1
Loden 2104 1
Loden 2115 15077 -5430 Lup 2
Loden 2158 15350 -5816 Nor 2
Loden 2159 153339-58092 Nor 3
Loden 2313 154049-52263 Nor 3
Bibliographical references :
1 1977L3 C = 1979A&AS...38..355L
LODEN L.O.
Continued studies of loose clusterings in the Southern Milky Way
UBV for 325 stars possibly belonging to 11 poor clusters or
associations
2 1979A&AS...36...83L 04/1979
LODEN, L. O.
Photometry of loose clusterings in the Southern Milky Way
3 1980A&AS...41..173L 08/1980
LODEN, L. O.
Concluding observations of loose stellar clusterings
in the southern Milky Way
4 1981A&AS...44..155L 04/1981
LODEN, L. O.
A photometric study of two stellar clusterings in the
Southern Milky Way and a general consideration on previous
and present data concerning galactic clusterings
Brent Archinal comment :
"...my guess is that many of these objects
were too loose to be considered "clusters" by Lynga.
It's also possible that Lynga just somehow missed them
since he apparently started his catalogue work about the
time these papers were published. ..."
------------------------------------------------------------------------
Table 5 - B. Achinal and B. Skiff discoveries
------------------------------------------------------------------------
Desig Coord(2000.0) Cns Comments
------------------------------------------------------------------------
Skiff 06 14 48.3 +12 52 25 Ori Diam-3.5'; N*=50; Near NGC
2194
Archinal 1 18 54 49.4 +05 32 56 SerCd Diam=1.5'; N*=24;
Br*=13.4(GSC)
------------------------------------------------------------------------
------------------------------------------------------------------------
Table 6 - My own discoveries
------------------------------------------------------------------------
Group Cons Coordinates(J2000.0) Dia N*
Comments
------------------------------------------------------------------------
Alessi J03091+2420 Ari 03 09 04.4 +24 20 19 8-8.5' 20
Includes obscure Double star Pou 248. "Ideogram cluster" III1p
Alessi J0542 -1532 Lep 05 42 -15 32
-
Alessi J0551 -1214 Lep 05 51 -12 14
-
Alessi J06016+3531 Aur 06 01.6 +35 31 3.0' ~40
Loose, little group. Chain of st in an empty area. Like na abs hole.
IV2p
Alessi J06305+0944 Mon 06 30 26.6 +09 44 28 1.4' 13:
Very small, compact cluster of pB stars. I1p Near Cr 95 ( low power
field )
Alessi J06431+0140 Mon 06 43 03.9 +01 40 19 0.9' 15
Very small, compact cluster of vF stars. I1p Near Do 24 ( low power
field )
Alessi J06595-1027 Mon 06 59 29.9 -10 27 10 7' 25
Group of B stars. ESO-like. III2p
Alessi J07024-6535 Vol 07 02.4 -65 35 5' 13
Losangle of four B stars + 9 Fainter ones nearby. III1p
Alessi J07025-0109 Mon 07 02.5 -01 09 7' 45
Loose, scattered, but distinctive group of stars IV2p
Alessi J07354-1505 Pup 07 35.4 -15 05 2.5'
Czernik-like cluster IV2p
Alessi J07372-2623 Pup 07 37 10.9 -26 23 23 0.9' 16:
Very Small, compact. Near Ru 27 ( Low power field ) I1p
Alessi J08122-2221 Pup 08 12.2 -22 21 ~2' ~10
Associated(???) to diffuse nebula BBW 117 ( BRAN 117 ) IV1p
Alessi J08142-1434 Pup 08 14 09.0 -14 33 41 7'x3.5' 22
Elongated N-S group of B stars. Easy. ESO-like III1p or III2p
Alessi J08145-5806 Car 08 14.5 -58 06 ~4' ~13
Loose. Near Anon J08154-5808 IV2p
Alessi J08154-5808 Car 08 15 21.7 -58 07 56 4.1' 18
Poor, but fairly compact and well detached one. III1p
Alessi J08180-3938 Pup 08 18.0 -39 38 ~6' 13
Poor S-shaped group of B stars. Easy III1p
Alessi J08559-5907 Car 08 55 55.4 -59 06 52 3.7' 35:
Loose, but detached cl. ESO-like. III or IV2p
Alessi J10583-8312 Oct 10 58.3 -83 12 ~2.5' 8
Very poor group (asterism) of B stars III2p
Alessi J1105 -3158 Hya 11 05 -31 58 8-9
Poor, but distinct C-shaped group of B stars III1p
Alessi J12130-6242 Cru 12 13 02 -62 42.4 0.8' ?
VS, eF cl of eeF st in very rich MW fd. Res SSWZ94-4. Just E of NGC
4184(Ru 102)
Alessi J15149-5629 Cir 15 14 50.2 -56 29 38 6.5'x3' 30
Elongated N-S group. ESO-like IV1p
Alessi J15210-8333 Oct 15 21.0 -83 33 ~6' ~18
Loose, triangular group. Some anonymous nebulosity (!!!) south? IV1p
Alessi J17052-4751 Ara 17 05.2 -47 51 6' 26
Loose triangular group in rich field ( just n of Harvard 13 ) IV1p
Alessi J1753 -275 Sgr 17 53 -27.5 1.5' 19:
Small Ruprecht-like group. S of Czernik 37
Alessi J18124-1523 SerCd 18 12.4 -15 23 4' 30
Fine group. II3p Possibly an absorption hole
Alessi J18169-5932 Pav 18 16.9 -59 32 ~5.5' 18
Curved group of B stars surr vB star III3p
Alessi J18471-5950 Pav 18 47.1 -59 50 ~0.4' 8:
Unknown multiple star? Not in WDS96
Alessi J18479-5946 Pav 18 47.9 -59 46 2.0' 15
Loose, small group of pF stars IV1p
Alessi J19102+0509 Aql 19 10.2 +05 09 4.4' ~25
Loose, poor but detached. I rich MW field. Typical III1p. Ruprecht-like
Alessi J19108+1312 Aql 19 10.8 +13 12 1.7:' ~12
Small, elongated E-W group. Near OC Berk 82 In very rich MW field. III1p
Alessi J20046-1031 Aql 20 04.6 -10 31 20:' ~20
Has fairly similar PMs( ACT, PPM ). Appears in Uranometr. Large. IV2p
------------------------------------------------------------------------
Cz-like or Ru-like : small, loose obscure clusters.
ESO-like : well detached cluster of B stars. Like a
miniature, compact constellation
[ Part of an e-mail that i sent to B. Archinal
about the discovery of Alessi J064304+01403 ]
> Hi,
> In a SkyView large field showing the sparse cl Dolidze 24
> in Monoceros, I found a very small knot on the E edge.
> In a smaller SkyView field, that knot appear like
> a very compact ( only 0.9' ) group of 15 stars.
> Please, look the table below:
> =
> USNO-A1.0 Stars in Alessi J064304+01403
> search centered on 06 43 03.9 +01 40 19 (J2000)
> ordered by increasing distance to center:
> =
> ---------------------------------------------------------------
> PMM-ID coordinates(J2000) Bmag Rmag r(") =
> ---------------------------------------------------------------
> 0900-03367224 06 43 04.293 +01 40 20.50 17.6 16.2 6.07
> 0900-03366741 06 43 03.492 +01 40 18.38 17.6 15.6 6.15
> 0900-03367263 06 43 04.349 +01 40 17.76 15.8 14.3 6.84
> 0900-03366630 06 43 03.301 +01 40 20.00 18.0 15.8 9.04
> 0900-03366657 06 43 03.347 +01 40 08.09 16.3 15.8 13.70
> 0900-03367419 06 43 04.628 +01 40 07.97 17.4 16.3 15.51
> 0900-03366844 06 43 03.674 +01 40 34.74 15.2 13.8 16.10
> 0900-03367477 06 43 04.716 +01 40 29.76 19.1 17.7 16.28
> 0900-03367666 06 43 04.993 +01 40 17.51 17.5 16.7 16.45
> 0900-03366362 06 43 02.808 +01 40 17.09 15.7 14.6 16.49
> 0900-03366458 06 43 02.998 +01 40 03.81 17.0 16.3 20.34
> 0900-03367094 06 43 04.076 +01 39 57.58 16.9 16.1 21.58
> 0900-03367496 06 43 04.742 +01 40 01.19 19.2 16.8 21.82
> 0900-03366423 06 43 02.934 +01 40 40.07 18.2 17.4 25.56
> 0900-03367716 06 43 05.064 +01 40 40.74 20.1 17.9 27.87
> ---------------------------------------------------------------
> =
> Is this object in your list?
> Do you know about others astronomers that saw it?
First off, this group appears to be southwest (not east) of Dolidze
24. Brian gives an improved position for Dolidze 24 of (2000.0) 06 44
44 +01 45. Do 24 does appear as a moderately impressive group of
brighter scattered stars on the DSS.
As to your group, it does look fairly impressive but small. I would
guess that if it were larger and brighter, it would have been
catalogued by now already as a cluster! Anyway, as with many of the
objects you've pointed out, there's really no way to tell for sure one
way or the other whether there's a physical association without
detailed observations. A color-magnitude plot of the above data might
tell you a little, but as Brian has pointed out the USNO-A1.0 colors
aren't very well calibrated so it wouldn't be conclusive one way or
the other.
There is by the way an IRAS source that may be associated with this
group, although it's position is off a little to the southeast. This
is (from SIMBAD) IRAS 06405+0142 at (2000.0) 06 43 06.9 +01 39 17. =
There's also a nice triple star in the field to the northwest (HD 48279
=3D ADS 5364 =3D STF 956).
Anyway, no, I haven't run across mention of this group anywhere else. =
Also SIMBAD lists only one reference for Dolidze 24, so I suspect that
it has been too little studied for anyone to have noticed this group
nearby.
All I can really suggest is that you include this on your (growing)
list of possible clusters and asterisms.
I hope you enjoy this information.
Regards
Bruno Sampaio Alessi - brunosan@joinnet.com.br
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