(IAAC) Trumpler 3 - 8inch F/10

• To: netastrocatalog@atmob.org
• Subject: (IAAC) Trumpler 3 - 8inch F/10
• From: Yann Pothier <ypothier@closun.snv.jussieu.fr>
• Date: Fri, 3 Jul 1998 08:32:46 +0200
• Reply-To: netastrocatalog-announce@atmob.org
• Sender: owner-netastrocatalog

Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Date and UT of observation: 21 December 92, about 20h00 UT
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): 2
Moon up (phase?): no
Instrument: Meade 8" F/10
Magnification: 87x
Filters used: no
Object: Trumpler 3
Category: open cluster
Constellation: CAS
Object data:  diam.23' / 30 stars of V8.8 and fainter
RA/DE: 03h11.8m, +63°15' (2000)
Description: giant cluster (estimated to be 35'; bright and evident; about
75 stars of which 10 are mag9, 20 are mag10-11, 20 are mag12 and 25+ others
are mag13-14.; scattered without central condensation; estimated Trumpler
type of III2m.



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

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