Type | Star |
---|---|
Magnitude | 4.886 | Right Ascension | 23h 30' 1.9" (2000) |
Declination | 58° 32' 56" N |
Constellation | Cassiopeia |
Classification | B3V |
Andrew Cooper
Dec 1, 2021 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 7 Transparency: 5 Moon: 0%
Blue-white, the double star catalogs go a little bit crazy here with multiple companions listed all the way down the alphabet to I, the C companion is the most notable as a 7th magnitude star visible 75" west, the double HJ1888 visible 1' northwest is listed as F and G, the C companion is actually C and D a 7/9mag 1.5" pair not split in tonight's conditions.
Reviewing what Gaia data is published to SIMBAD shows that much of this is a true dynamic system, the C, D, F, G, and I components sharing quite comparable proper motion and parallax, a multiple star system or a small cluster?
HD 220369 | HJ 1888 | King20 |
PK111-2.1 | V398 Cassiopeiae |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page