20440+4030 SLN 85
20h 44m 01.03s +40° 30' 14.4" P.A. 203.00 sep 9.1 mag 15.30,17.90 Sp DA+DAH
Coord 2000 |
20440+4030 |
|
Discov num |
SLN 85 |
|
Comp |
|
|
Coord arcsec 2000 |
20 44 01.03 +40 30 14.4 |
|
Date first |
1998 |
|
Date last |
2016 |
|
Obs |
7 |
|
Pa first |
203 |
|
Pa last |
203 |
|
P.A. Now (θ) |
203° |
|
Sep first |
9.3 |
|
Sep last |
9.07 |
|
Sep. Now (ρ) |
9.07" |
|
Mag pri |
15.30 |
|
Mag sec |
17.90 |
|
delta mag (ΔM) |
2.6 |
|
Spectral class |
DA+DAH (white dwarf/white dwarf) |
|
Pri motion ra |
+019 |
|
Sec motion ra |
|
|
Pri motion dec |
+047 |
|
Sec motion dec |
|
|
Notes |
V
(Proper motion indicates physical) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Gaia DR2 |
2066035777984385664 |
|