18081+0213 BU 636 AD
18h 08m 07.24s +02° 13' 07.2" P.A. 348.00 sep 40.8 mag 6.64,11.12 Sp A4V dist. 134.77 pc (439.62 l.y.)
| Coord 2000 |
18081+0213 |
|
Discov num |
BU 636 |
|
Comp |
AD |
|
Coord arcsec 2000 |
18 08 07.24 +02 13 07.2 |
|
| Date first |
1923 |
|
Date last |
2002 |
|
Obs |
5 |
|
| Pa first |
349 |
|
Pa last |
347.6 |
|
P.A. Now (θ) |
347.6° |
|
| Sep first |
41.5 |
|
Sep last |
40.75 |
|
Sep. Now (ρ) |
40.75" |
|
| Mag pri |
6.64 |
|
Mag sec |
11.12 |
|
delta mag (ΔM) |
4.48 |
|
Spectral class |
A4V (white) |
|
| Pri motion ra |
+012 |
|
Sec motion ra |
+005 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=0.58
Nature of this double is uncertain.
18081+0213 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
123156 |
18 08 07 +02 13 07 |
GII 259 Aa,Ab |
2013 |
1 |
168 |
0.1 |
7.40 |
7.40 |
0.00 |
|
|
| Show |
HD 165887 |
123156 |
18 08 07 +02 13 07 |
BU 636 AB |
2013 |
12 |
120 |
1.4 |
6.64 |
11.80 |
5.16 |
|
|
| Show |
|
123156 |
18 08 07 +02 13 07 |
BU 636 AC |
2015 |
6 |
93 |
11.7 |
6.64 |
13.60 |
6.96 |
|
|
| Show |
|
123156 |
18 08 07 +02 13 07 |
BU 636 AD |
2002 |
5 |
348 |
40.8 |
6.64 |
11.12 |
4.48 |
|
<=== |
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ophiuchus |
|
SAO |
123156 |
|
HIP |
88841 |
|
Tycho2 |
0435-04738-1 |
|
| Gaia DR2 |
4468305755100841472 |
|
HD |
165887 |
|
BD |
BD+02 3498 |
|
Distance |
134.77 |
|
| Distance ly |
439.62 |
|
