21178-3945 CRU 9019 AB (HD 202561)
21h 17m 50.31s -39° 44' 58.7" P.A. 230.00 sep 117.1 mag 9.80,10.00 Sp G2V
Coord 2000 |
21178-3945 |
|
Discov num |
CRU9019 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 17 50.31 -39 44 58.7 |
|
Date first |
1879 |
|
Date last |
2015 |
|
Obs |
7 |
|
Pa first |
231 |
|
Pa last |
229.7 |
|
P.A. Now (θ) |
229.7° |
|
Sep first |
110.7 |
|
Sep last |
117.093 |
|
Sep. Now (ρ) |
117.093" |
|
Mag pri |
9.80 |
|
Mag sec |
10.00 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
G2V (yellow) |
|
Pri motion ra |
+007 |
|
Sec motion ra |
-007 |
|
Pri motion dec |
+034 |
|
Sec motion dec |
+016 |
|
Notes |
|
|
rPM=0.657
Nature of this double is uncertain.
21178-3945 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 202561 |
212872 |
21 17 50 -39 44 59 |
CRU 9019 AB |
2015 |
7 |
230 |
117.1 |
9.80 |
10.00 |
0.20 |
|
<=== |
Show |
|
212872 |
21 17 50 -39 44 59 |
CRU 9019 AC |
2015 |
7 |
62 |
62.8 |
9.80 |
10.00 |
0.20 |
|
|
Show |
|
|
21 17 43 -39 46 14 |
TDT 2890 Ba,Bb |
1991 |
1 |
252 |
0.5 |
10.77 |
10.78 |
0.01 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 202561 |
|
Constellation |
Microscopium |
|
SAO |
212872 |
|
Tycho2 |
7970-00723-1 |
|
Gaia DR2 |
6583152839963766400 |
|
HD |
202561 |
|
DM |
CP-40 9509 |
|