18405+3139 HO 437 CD
18h 40m 26.61s +31° 38' 37.0" P.A. 347.00 sep 4.5 mag 11.30,11.70
| Coord 2000 |
18405+3139 |
|
Discov num |
HO 437 |
|
Comp |
CD |
|
Coord arcsec 2000 |
18 40 26.61 +31 38 37.0 |
|
| Date first |
1893 |
|
Date last |
2015 |
|
Obs |
16 |
|
| Pa first |
337 |
|
Pa last |
347.3 |
|
P.A. Now (θ) |
347.3° |
|
| Sep first |
2.3 |
|
Sep last |
4.478 |
|
Sep. Now (ρ) |
4.478" |
|
| Mag pri |
11.30 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
|
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-010 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18405+3139 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
67238 |
18 40 30 +31 38 36 |
HO 437 AB |
2016 |
41 |
140 |
0.3 |
9.00 |
7.71 |
1.29 |
|
|
| Show |
|
67238 |
18 40 30 +31 38 36 |
HO 437 AC |
2014 |
8 |
272 |
39.9 |
9.00 |
11.30 |
2.30 |
|
|
| Show |
|
67238 |
18 40 30 +31 38 36 |
HO 437 AE |
2006 |
5 |
288 |
22.1 |
9.00 |
15.20 |
6.20 |
|
|
| Show |
|
|
18 40 27 +31 38 37 |
HO 437 CD |
2015 |
16 |
347 |
4.5 |
11.30 |
11.70 |
0.40 |
|
<=== |
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
Gaia DR2 |
2090055026112175360 |
|