18439-1954 STN 44 (HD 172987)
18h 43m 56.52s -19° 53' 29.9" P.A. 316.00 sep 1.6 mag 9.05,9.13 Sp K0V
Coord 2000 |
18439-1954 |
|
Discov num |
STN 44 |
|
Comp |
|
|
Coord arcsec 2000 |
18 43 56.52 -19 53 29.9 |
|
Date first |
1877 |
|
Date last |
2017 |
|
Obs |
36 |
|
Pa first |
285 |
|
Pa last |
315.5 |
|
P.A. Now (θ) |
315.5° |
|
Sep first |
1.7 |
|
Sep last |
1.606 |
|
Sep. Now (ρ) |
1.606" |
|
Mag pri |
9.05 |
|
Mag sec |
9.13 |
|
delta mag (ΔM) |
0.08 |
|
Spectral class |
K0V (yellow-orange) |
|
Pri motion ra |
+063 |
|
Sec motion ra |
+063 |
|
Pri motion dec |
-016 |
|
Sec motion dec |
-016 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 172987 |
|
Constellation |
Sagittarius |
|
SAO |
161773 |
|
Tycho2 |
6288-00925-2 |
|
Gaia DR2 |
4080221546859834624 |
|
HD |
172987 |
|