18015+0331 BU 1202 AB,E
18h 01m 32.36s +03° 31' 27.4" P.A. 138.00 sep 90.4 mag 8.43,7.95 Sp A0 dist. 305.81 pc (997.55 l.y.)
| Coord 2000 |
18015+0331 |
|
Discov num |
BU 1202 |
|
Comp |
AB,E |
|
Coord arcsec 2000 |
18 01 32.36 +03 31 27.4 |
|
| Date first |
1890 |
|
Date last |
2018 |
|
Obs |
27 |
|
| Pa first |
138 |
|
Pa last |
137.6 |
|
P.A. Now (θ) |
137.6° |
|
| Sep first |
90.2 |
|
Sep last |
90.35 |
|
Sep. Now (ρ) |
90.35" |
|
| Mag pri |
8.43 |
|
Mag sec |
7.95 |
|
delta mag (ΔM) |
0.48 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-011 |
|
Sec motion dec |
-009 |
|
| Notes |
Z
(Parallax indicates components are physical) |
|
rPM=0.2 (< 0.3, Physical double)
This double is physical.
18015+0331 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
123031 |
18 01 32 +03 31 27 |
BU 1202 AB |
2013 |
22 |
344 |
0.7 |
8.67 |
9.69 |
1.02 |
|
|
| Show |
HD 164529 |
123031 |
18 01 32 +03 31 27 |
BU 1202 AB,C |
2018 |
23 |
28 |
105.5 |
8.43 |
10.20 |
1.77 |
|
|
| Show |
|
123031 |
18 01 32 +03 31 27 |
BU 1202 AB,E |
2018 |
27 |
138 |
90.4 |
8.43 |
7.95 |
0.48 |
|
<=== |
| Show |
|
|
18 01 36 +03 33 01 |
BU 1202 CD |
2000 |
9 |
110 |
2.8 |
10.20 |
12.10 |
1.90 |
|
|
| Show |
|
|
18 01 36 +03 33 01 |
BU 1202 CF |
2011 |
4 |
163 |
17.4 |
10.20 |
13.80 |
3.60 |
|
|
Sextuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ophiuchus |
|
SAO |
123031 |
|
HIP |
88278 |
|
Tycho2 |
0434-00976-1 |
|
| Gaia DR2 |
4469478414306258432 |
|
HD |
164557 |
|
ADS |
10987 |
|
DM |
BD+03 3568 |
|
| BD |
BD+03 3565 |
|
Distance |
305.81 |
|
Distance ly |
997.55 |
|
