18444-2926 B 9035 AE (HD 172990)
18h 44m 21.80s -29° 25' 40.5" P.A. 277.00 sep 31.3 mag 8.54,11.40 Sp K0III
| Coord 2000 |
18444-2926 |
|
Discov num |
B 9035 |
|
Comp |
AE |
|
Coord arcsec 2000 |
18 44 21.80 -29 25 40.5 |
|
| Date first |
1913 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
278 |
|
Pa last |
277.2 |
|
P.A. Now (θ) |
277.2° |
|
| Sep first |
31.1 |
|
Sep last |
31.344 |
|
Sep. Now (ρ) |
31.344" |
|
| Mag pri |
8.54 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
2.86 |
|
Spectral class |
K0III (yellow-orange) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-007 |
|
| Notes |
|
|
rPM=0.202 (< 0.3, Physical double)
This double is physical.
18444-2926 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
187202 |
18 44 22 -29 25 40 |
SEE 357 AB |
2015 |
8 |
291 |
14.5 |
8.54 |
12.80 |
4.26 |
|
|
| Show |
|
187202 |
18 44 22 -29 25 40 |
B 9035 AC |
2015 |
4 |
313 |
14.5 |
8.54 |
14.00 |
5.46 |
|
|
| Show |
|
187202 |
18 44 22 -29 25 40 |
B 9035 AD |
2015 |
4 |
349 |
10.8 |
8.54 |
14.00 |
5.46 |
|
|
| Show |
HD 172990 |
187202 |
18 44 22 -29 25 40 |
B 9035 AE |
2015 |
6 |
277 |
31.3 |
8.54 |
11.40 |
2.86 |
|
<=== |
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 172990 |
|
Constellation |
Sagittarius |
|
SAO |
187202 |
|
Tycho2 |
6871-00841-1 |
|
| Gaia DR2 |
4071333472835422336 |
|
HD |
172990 |
|
