(IAAC) Harvard 21 - 8inch F/10

Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Date and UT of observation: 26 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): 5
Moon up (phase?): no
Instrument: Meade 8inch F/10
Magnification: 87x
Filters used: no
Object: Harvard 21
Category: open cluster
Constellation: CAS
Object data: p9.0 -  diam.5' - 20 stars
RA/DE: 23h54.1m, +6146'
Description: medium-sized and poor cluster, about 6' in diam. (somewhat
elongated E-W), containing about 10 stars of mag.11-12 on an granulous and
nebulous background; a mag.8 star is at 6'NE from the center and the
cluster King 12 is at 13'NW (center to center).
I can provide a scanned scheme of Harvard 21 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
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