18165-7604 HDS 2581 (HD 165757)
18h 16m 28.92s -76° 04' 17.5" P.A. 252.00 sep 0.2 mag 9.29,11.73 Sp A2III/IV dist. 305.81 pc (997.55 l.y.)
Coord 2000 |
18165-7604 |
|
Discov num |
HDS2581 |
|
Comp |
|
|
Coord arcsec 2000 |
18 16 28.92 -76 04 17.5 |
|
Date first |
1991 |
|
Date last |
2021 |
|
Obs |
2 |
|
Pa first |
272 |
|
Pa last |
251.5 |
|
P.A. Now (θ) |
251.5° |
|
Sep first |
0.3 |
|
Sep last |
0.153 |
|
Sep. Now (ρ) |
0.153" |
|
Mag pri |
9.29 |
|
Mag sec |
11.73 |
|
delta mag (ΔM) |
2.44 |
|
Spectral class |
A2III/IV (white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
-014 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 165757 |
|
Constellation |
Apus |
|
HIP |
89559 |
|
Tycho2 |
9445-00494-1 |
|
Gaia DR2 |
6414300873646953344 |
|
HD |
165757 |
|
CP |
CP-76 1233 |
|
Distance |
305.81 |
|
Distance ly |
997.55 |
|