Object:  Open cluster STOCK 12 (+ s. else??)    Constell: CAS 

RA: 23h 37.2m (st12)    Decl: +52° 25'          Epoch: 2000
Mag:                    Size: 20'               Type: IV 2 p

Observer: Jere Kahanpää
Obs. place: Jyväskylä, Finland
Date/Time: 25./26.9.1993, 23.15

Telescope: N 205/1000
Magn: 40x               Filter:
Field: 83'              NE Lim.mag: 5.2m
Background sky: 3-4     Seeing: 2-3
Weather: 3/4 setting W. Some very faint aurora bor. Good.

Brightness: see below   Alt: 75°
Description: There is an beautiful cluster in this field - but
it's not where St 12 should be! The only clusterlike object lies
at RA 23h 35.8m, Dekl. +52°40' (J2000). This cluster (referred
as JVK 1 from now on): Size 20'. A dozen bright stars (mag. 8-
10) and another dozen stars mag. 11... A nice triple star in the
center.  Est. mag. 6.5

28' SE lies a larger (30'x20') group of stars. About a dozen
dozen 10m and 10-15 mag. 12-13. Needs imagination to see any
concentration of stars, though. The area has two long (20-30')
chains of stars and many doubles. This group is much closer to
the given position of St 12 but size and type don't match. 

I think the solution is JVK1 = Stock 12 and the coords of St 12
should changed to those of JVK 1, size=20', #stars=25, Tr-type=
III 2 p. The other group is probably just a faint asterism and
is not interesting.   

I don't have Lyngå's catalogue with me so I cannot check his
data of this cl right now.