Zeta 1 Cancri
DSS image of Zeta 1 Cancri
Overlaid DSS image of Zeta 1 Cancri, 60' x 60' with north at top and west to the right

Aladin viewer for the region around Zeta 1 Cancri
ζ1 Cnc, ζ Cnc AB
Σ 1196AB, WDS J08122+1739AB, SAO 97645, 16 Cnc AB

Type  Star
Magnitude  5.31
Right Ascension  8h 12' 12.7"  (2000)
Declination  17° 38' 52" N
Constellation  Cancer
Description  Binary 5.3/6.2 1.4"
Classification  F
Observing Notes

Andrew Cooper
Feb 19, 2022    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 136x
Seeing: 8 Transparency: 6 Moon: 85%

Tegmine is an easy split with decent conditions, a gulf of dark beween the 5" ζ1 Cnc and ζ2 Cnc pair, ζ1 Cnc itself is just barely split in moments of good seeing, the ζ1Cnc B companion visible 1.6" to the northeast, ζ1 Cnc and ζ2 Cnc are both pale yellow

This trio (and unseen companions) is a gravitationally bound system, Gaia EDR3 data shows matching parallax and high proper motion...
             parallax  PM RA       δ
ζ1 Cnc A 40.88 118.3 -148.4 mas/y
ζ1 Cnc B 40.95 58.8 -120.9
ζ2 Cnc 41.15 36.9 -150.
9
Other Data Sources for Zeta 1 Cancri
Associated objects for Zeta 1 Cancri
Nearby objects for Zeta 1 Cancri
4 objects found within 60'
Tegmine Zeta Cancri A
Zeta Cancri C
Credits...

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

Zeta 1 Cancri