22370-4035 BU 771 AB (Sig2 Gru)
22h 36m 58.86s -40° 35' 27.7" P.A. 267.00 sep 2.6 mag 5.88,10.03 Sp A1V dist. 65.83 pc (214.74 l.y.)
| Coord 2000 |
22370-4035 |
|
Discov num |
BU 771 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 36 58.86 -40 35 27.7 |
|
| Date first |
1879 |
|
Date last |
2016 |
|
Obs |
15 |
|
| Pa first |
270 |
|
Pa last |
266.6 |
|
P.A. Now (θ) |
266.6° |
|
| Sep first |
1.3 |
|
Sep last |
2.644 |
|
Sep. Now (ρ) |
2.644" |
|
| Mag pri |
5.88 |
|
Mag sec |
10.03 |
|
delta mag (ΔM) |
4.15 |
|
Spectral class |
A1V (white) |
|
| Pri motion ra |
+047 |
|
Sec motion ra |
+045 |
|
| Pri motion dec |
-067 |
|
Sec motion dec |
-070 |
|
| Notes |
N
(See Notes) |
|
rPM=0.043 (< 0.3, Physical double)
This double is physical.
22370-4035 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Sig2 Gru |
231217 |
22 36 59 -40 35 28 |
BU 771 AB |
2016 |
15 |
267 |
2.6 |
5.88 |
10.03 |
4.15 |
|
<=== |
| Show |
|
231217 |
22 36 59 -40 35 28 |
SHY 811 AC |
1999 |
5 |
275 |
337.9 |
5.88 |
6.29 |
0.41 |
|
|
| Show |
|
231217 |
22 36 59 -40 35 28 |
CRU 9044 AE |
2010 |
5 |
297 |
65.3 |
5.88 |
12.70 |
6.82 |
|
|
| Show |
|
231211 |
22 36 29 -40 34 58 |
CRU 9045 CD |
2010 |
6 |
290 |
110.8 |
6.29 |
12.10 |
5.81 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Sig2 Gru |
|
Constellation |
Grus |
|
SAO |
231217 |
|
HIP |
111643 |
|
| Tycho2 |
8000-01536-1 |
|
Gaia DR2 |
6545771025165622144 |
|
HD |
214150 |
|
HR |
8602 |
|
| GC |
31563 |
|
CD |
CD-4114963 |
|
CP |
CP-41 9812 |
|
Bayer |
Sigma 2 Gruis |
|
| Bayer name |
Sig2 Gru |
|
Distance |
65.83 |
|
Distance ly |
214.74 |
|
Bayer greek |
σ2 Gru |
|
