(IAAC) Berkley 4 - 8inch F/10

Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Date and UT of observation: 27 December 92, ab. 03hTU
Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft)
Limiting magnitude (visual): 6,0
Seeing (1 to 5 - best to worst): 3
Moon up (phase?): no
Instrument: Meade 8inch F/10
Magnification: 87x
Filters used: no
Object: Berkley 4
Category: open cluster
Constellation: Cas
Object data: diam.5' - 25 stars of v12.57 and fainter
RA/DE: 00h45.5 +64 24
Description: little cluster, not obvious, centered on a mag10.5 star,
containing about 5 other stars of mag.12 and fainter, about 4' in diameter;
an alignment of 7 stars are forming a "L" to the SE; there is King 16 at
I can provide a scanned drawing of Berkley 4 to anyone who can read the
binhex encoding of Eudora (for Mac); just mail me
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