18447+3237 LDS 4797 (Zet2 Lyr)
18h 44m 45.77s +32° 37' 31.8" P.A. 28.00 sep 47.5 mag 17.38,17.64 dist. 47.69 pc (155.56 l.y.)
| Coord 2000 |
18447+3237 |
|
Discov num |
LDS4797 |
|
Comp |
|
|
Coord arcsec 2000 |
18 44 45.77 +32 37 31.8 |
|
| Date first |
1960 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
28 |
|
Pa last |
27.5 |
|
P.A. Now (θ) |
27.5° |
|
| Sep first |
47.0 |
|
Sep last |
47.489 |
|
Sep. Now (ρ) |
47.489" |
|
| Mag pri |
17.38 |
|
Mag sec |
17.64 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
|
|
| Pri motion ra |
+040 |
|
Sec motion ra |
+032 |
|
| Pri motion dec |
-120 |
|
Sec motion dec |
-110 |
|
| Notes |
|
|
rPM=0.101 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
Zet2 Lyr |
|
Var name |
NSV11311 Lyr |
|
Constellation |
Lyra |
|
SAO |
67324 |
|
| HIP |
91973 |
|
Tycho2 |
3118-02081-1 |
|
Gaia DR2 |
2090229642302460928 |
|
HD |
173649 |
|
| HR |
7057 |
|
GC |
25678 |
|
ADS |
11639 |
|
BD |
BD+37 3223 |
|
| Bayer |
Zeta 2 Lyrae |
|
Bayer name |
Zet2 Lyr |
|
Flamsteed |
7 Lyrae |
|
Flamsteed name |
7 Lyr |
|
| Distance |
47.69 |
|
Distance ly |
155.56 |
|
Bayer greek |
ζ2 Lyr |
|
