18016-2740 TDT 641 AB (HD 316945)
18h 01m 36.35s -27° 40' 04.9" P.A. 130.00 sep 1.9 mag 9.46,11.08 Sp A2
Coord 2000 |
18016-2740 |
|
Discov num |
TDT 641 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 01 36.35 -27 40 04.9 |
|
Date first |
1991 |
|
Date last |
1991 |
|
Obs |
1 |
|
Pa first |
130 |
|
Pa last |
129.8 |
|
P.A. Now (θ) |
129.8° |
|
Sep first |
1.9 |
|
Sep last |
1.91 |
|
Sep. Now (ρ) |
1.91" |
|
Mag pri |
9.46 |
|
Mag sec |
11.08 |
|
delta mag (ΔM) |
1.62 |
|
Spectral class |
A2 (white) |
|
Pri motion ra |
+007 |
|
Sec motion ra |
+007 |
|
Pri motion dec |
-002 |
|
Sec motion dec |
-002 |
|
Notes |
|
|
Nature of this double is uncertain.
18016-2740 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 316945 |
|
18 01 36 -27 40 05 |
TDT 641 AB |
1991 |
1 |
130 |
1.9 |
9.46 |
11.08 |
1.62 |
|
<=== |
Show |
|
|
18 01 36 -27 40 05 |
STN 38 AC |
2015 |
9 |
87 |
6.3 |
9.46 |
11.50 |
2.04 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 316945 |
|
Constellation |
Sagittarius |
|
Tycho2 |
6850-02699-1 |
|
Gaia DR2 |
4062738315597854976 |
|
HD |
316945 |
|