01398-2031 DON 21
01h 39m 50.42s -20° 31' 03.4" P.A. 353.00 sep 2.7 mag 9.60,14.00 Sp F5 dist. 243.9 pc (795.6 l.y.)
| Coord 2000 |
01398-2031 |
|
Discov num |
DON 21 |
|
Comp |
|
|
Coord arcsec 2000 |
01 39 50.42 -20 31 03.4 |
|
| Date first |
1929 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
346 |
|
Pa last |
353.2 |
|
P.A. Now (θ) |
353.2° |
|
| Sep first |
2.0 |
|
Sep last |
2.734 |
|
Sep. Now (ρ) |
2.734" |
|
| Mag pri |
9.60 |
|
Mag sec |
14.00 |
|
delta mag (ΔM) |
4.4 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
+055 |
|
Sec motion ra |
|
|
| Pri motion dec |
+000 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cetus |
|
SAO |
167206 |
|
HIP |
7754 |
|
Tycho2 |
5857-00109-1 |
|
| Gaia DR2 |
5138957339219306368 |
|
HD |
10246 |
|
BD |
BD-21 274 |
|
Distance |
243.9 |
|
| Distance ly |
795.6 |
|
