17071+3106 STF2127

 
 
17h 07m 04.42s +31 05' 35.1" P.A. 281 sep 15.1 mag 8.70,12.30 Sp A3 dist. 3846.15 pc (12546.14 l.y.)
 
 
Coord 2000
17071+3106
Discov num
STF2127
Comp
Coord arcsec 2000
17 07 04.42 +31 05 35.1
Date first
1902
Date last
2015
Obs
19
Pa first
274
Pa last
281
P.A. Now (θ)
281°
Sep first
16.3
Sep last
15.1
Sep. Now (ρ)
15.1"
Mag pri
8.70
Mag sec
12.30
delta mag (ΔM)
3.6
Spectral class
A3 (white)
Pri motion ra
-006
Sec motion ra
-007
Pri motion dec
-034
Sec motion dec
-035
Notes
rPM=0.04 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280.5
Precise sep
15.137
Constellation
Hercules
SAO
65797
HIP
83754
Tycho2
2591-00779-1
HD
154917
BD
BD+31 2965
Distance
3846.15
Distance ly
12546.14
last precise pa
280.5
last precise sep
15.137
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17071+3106 STF2127 2006 9 281 15.3 8.70 12.30 A3 D 170704.42+310535.1
17071+3106 STF2127 2007 10 280 15.5 8.70 12.30 A3 D 170704.42+310535.1
17071+3106 STF2127 2008 12 281 15.9 8.70 12.30 A3 D 170704.42+310535.1
17071+3106 STF2127 2010 14 281 15.1 8.70 12.30 A3 170704.42+310535.1
17071+3106 STF2127 2011 16 276 14.8 8.70 12.30 A3 170704.42+310535.1
17071+3106 STF2127 2015 17 281 15.1 8.70 12.30 A3 170704.42+310535.1

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