18061-0819 HDS 2551 (HD 165402)
18h 06m 07.40s -08° 19' 26.1" P.A. 91.00 sep 0.1 mag 6.09,7.81 Sp B8III-IV dist. 158.73 pc (517.78 l.y.)
Coord 2000 |
18061-0819 |
|
Discov num |
HDS2551 |
|
Comp |
|
|
Coord arcsec 2000 |
18 06 07.40 -08 19 26.1 |
|
Date first |
1991 |
|
Date last |
2021 |
|
Obs |
7 |
|
Pa first |
62 |
|
Pa last |
90.6 |
|
P.A. Now (θ) |
90.6° |
|
Sep first |
0.4 |
|
Sep last |
0.149 |
|
Sep. Now (ρ) |
0.149" |
|
Mag pri |
6.09 |
|
Mag sec |
7.81 |
|
delta mag (ΔM) |
1.72 |
|
Spectral class |
B8III-IV (blue-white) |
|
Pri motion ra |
-002 |
|
Sec motion ra |
|
|
Pri motion dec |
-017 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 165402 |
|
Constellation |
Serpens |
|
SAO |
142083 |
|
HIP |
88670 |
|
Tycho2 |
5675-00663-1 |
|
Gaia DR2 |
4158888511447492736 |
|
HD |
165402 |
|
HR |
6755 |
|
GC |
24656 |
|
BD |
BD-08 4558 |
|
FK5 |
3436 |
|
Distance |
158.73 |
|
Distance ly |
517.78 |
|