18015+4019 HO 77 (HD 164899)
18h 01m 29.34s +40° 19' 25.4" P.A. 312.00 sep 2.0 mag 7.92,11.53 Sp A0Vs dist. 349.65 pc (1140.56 l.y.)
| Coord 2000 |
18015+4019 |
|
Discov num |
HO 77 |
|
Comp |
|
|
Coord arcsec 2000 |
18 01 29.34 +40 19 25.4 |
|
| Date first |
1884 |
|
Date last |
2014 |
|
Obs |
12 |
|
| Pa first |
312 |
|
Pa last |
312.2 |
|
P.A. Now (θ) |
312.2° |
|
| Sep first |
1.9 |
|
Sep last |
2.015 |
|
Sep. Now (ρ) |
2.015" |
|
| Mag pri |
7.92 |
|
Mag sec |
11.53 |
|
delta mag (ΔM) |
3.61 |
|
Spectral class |
A0Vs (white) |
|
| Pri motion ra |
-007 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
+006 |
|
| Notes |
|
|
rPM=0.555
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 164899 |
|
Constellation |
Hercules |
|
SAO |
47144 |
|
HIP |
88265 |
|
| Tycho2 |
3106-00828-1 |
|
Gaia DR2 |
4611361391916153344 |
|
HD |
164899 |
|
BD |
BD+40 3262 |
|
| Distance |
349.65 |
|
Distance ly |
1140.56 |
|
