22553-4828 B 2506 CD
22h 55m 16.00s -48° 29' 30.3" P.A. 267.00 sep 0.1 mag 7.30,7.50 Sp F6/8V: dist. 44.54 pc (145.29 l.y.)
| Coord 2000 |
22553-4828 |
|
Discov num |
B 2506 |
|
Comp |
CD |
|
Coord arcsec 2000 |
22 55 16.00 -48 29 30.3 |
|
| Date first |
1944 |
|
Date last |
1964 |
|
Obs |
5 |
|
| Pa first |
320 |
|
Pa last |
266.8 |
|
P.A. Now (θ) |
266.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.11 |
|
Sep. Now (ρ) |
0.11" |
|
| Mag pri |
7.30 |
|
Mag sec |
7.50 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
F6/8V: (yellow-white) |
|
| Pri motion ra |
-227 |
|
Sec motion ra |
-227 |
|
| Pri motion dec |
+056 |
|
Sec motion dec |
+056 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
22553-4828 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
231354 |
22 55 16 -48 27 57 |
I 22 AB |
2017 |
45 |
178 |
0.6 |
7.29 |
8.91 |
1.62 |
Y |
|
| Show |
Tau2 Gru |
231354 |
22 55 16 -48 27 57 |
I 22 AB,CD |
2017 |
25 |
181 |
93.9 |
7.14 |
6.71 |
0.43 |
|
|
| Show |
|
231353 |
22 55 16 -48 29 30 |
B 2506 CD |
1964 |
5 |
267 |
0.1 |
7.30 |
7.50 |
0.20 |
|
<=== |
Quadruple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Grus |
|
SAO |
231353 |
|
HIP |
113190 |
|
Tycho2 |
8450-01201-1 |
|
| Gaia DR2 |
6515008236009148800 |
|
HD |
216656 |
|
GC |
31952 |
|
CD |
CD-4913997 |
|
| CP |
CP-4911676 |
|
Bayer |
Tau 2 Gruis |
|
Bayer name |
Tau2 Gru |
|
Distance |
44.54 |
|
| Distance ly |
145.29 |
|
Bayer greek |
τ2 Gru |
|
