The Double Cluster in
Perseus, NGC869 and 884 Comments
A map of the star field. Magnitudes are given
a decimal point, e.g. 67 is to be interpreted as magnitude
How to Find It
Between Cassiopeia and the head of Perseus.
Double the viewing pleasure in one field of view.
60-degree field of view
Data for the Double Cluster as a whole RA 02 21 dec +57 08 integrated magnitude 3.5 Data for NGC869 (Janes, Duke, and Lynga,
1987) RA 02 19 dec +57 09 total V magnitude 5.3 NGC number 869 Trumpler class I 3 r angular diameter 18' distance 2200 pc age (Myr) 18 integrated B-V .44 observed stars 317 earliest sp. class B0 brightest star 7.0 Data for NGC884 (Janes, Duke, and Lynga,
1987) RA 02 22 dec +57 07 total V magnitude NGC number 884 Trumpler class I 3 r angular diameter 18' distance 2200 pc age (Myr) 3.2 integrated B-V .48 observed stars 303 earliest sp. class B0 brightest star 7.0
(c) Copyright 1998 Benjamin Crowell. All right reserved.
Photos from the Digitized Sky Survey, stdatu.stsci.edu/dss/dss_form.html
Sky maps created by Your Sky, www.fourmilab.com