18457+3942 BU 51 AB
18h 45m 39.77s +39° 41' 59.6" P.A. 185.00 sep 74.2 mag 9.00,11.95 Sp M0
Coord 2000 |
18457+3942 |
|
Discov num |
BU 51 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 45 39.77 +39 41 59.6 |
|
Date first |
1870 |
|
Date last |
2015 |
|
Obs |
19 |
|
Pa first |
190 |
|
Pa last |
185 |
|
P.A. Now (θ) |
185° |
|
Sep first |
90.0 |
|
Sep last |
74.22 |
|
Sep. Now (ρ) |
74.22" |
|
Mag pri |
9.00 |
|
Mag sec |
11.95 |
|
delta mag (ΔM) |
2.95 |
|
Spectral class |
M0 (red) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
-003 |
|
Pri motion dec |
-001 |
|
Sec motion dec |
+004 |
|
Notes |
|
|
rPM=1.077
This double is not physical.
18457+3942 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
18 45 40 +39 41 60 |
BU 51 AB |
2015 |
19 |
185 |
74.2 |
9.00 |
11.95 |
2.95 |
|
<=== |
Show |
|
|
18 45 39 +39 40 46 |
BU 51 BC |
2015 |
17 |
297 |
6.0 |
11.95 |
12.90 |
0.95 |
|
|
Show |
|
|
18 45 39 +39 40 46 |
FYM 51 BD |
2015 |
7 |
344 |
34.6 |
11.95 |
15.60 |
3.65 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Lyra |
|
Tycho2 |
3122-01170-1 |
|
Gaia DR2 |
2098229139147976704 |
|
ADS |
11668 |
|