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(IAAC) King 12 - 8inch F/10



Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Date and UT of observation: 27 December 92, ab20h30UT
Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft)
Limiting magnitude (visual): 5,8
Seeing (1 to 5 - best to worst): 3
Moon up (phase?): no
Instrument: Meade 8inch F/10
Magnification: 87x
Filters used: no
Object: King 12
Category: open cluster
Constellation: CAS
Object data:  diam.5' - trumpler type I2p - 15 stars of p10.0 and fainter
RA/DE: 23h53.0, +6158'
Description: medium-sized cluster, centered on 2 stars mag.10 and 11,
containing about 10 stars of mag.13 and fainter with a nebulous and
granulous background; estimated dimensions are 5.5'x4.0' (WNW-ESE); a mag8
star is 6' th the SW of the center and Harvard 21 is at 13' to the SE
(center to center).

I can provide a scanned scheme of King 12 to anyone who can read the binhex
encoding of Eudora (for Mac); just mail me to try
(ypothier@abi.snv.jussieu.fr), it works sometimes with other
configurations...


Yann Pothier	tel: 01 43 41 43 29
11 impasse Canart, 75012 PARIS, FRANCE
Email: ypothier@abi.snv.jussieu.fr
Site : http://pegase.unice.fr/~skylink/publi/cielextreme