18071+4943 STT 344

 
 
18h 07m 06.29s +49 42' 37.6" P.A. 140 sep 2.3 mag 6.47,10.31 Sp A2V dist. 221.24 pc (721.68 l.y.)
 
 
Coord 2000
18071+4943
Discov num
STT 344
Comp
Coord arcsec 2000
18 07 06.29 +49 42 37.6
Date first
1843
Date last
2009
Obs
27
Pa first
151
Pa last
140
P.A. Now (θ)
140°
Sep first
1.8
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
6.47
Mag sec
10.31
delta mag (ΔM)
3.84
Spectral class
A2V (white)
Pri motion ra
+000
Sec motion ra
+001
Pri motion dec
+026
Sec motion dec
+020
Notes
N (See Notes)
rPM=0.234 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
140.1
Precise sep
2.256
Constellation
Hercules
SAO
47233
HIP
88754
Tycho2
3532-01537-1
HD
166228
HR
6792
BD
BD+49 2732
Distance
221.24
Distance ly
721.68
last precise pa
140.1
last precise sep
2.256
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18071+4943 STT 344 1991 24 141 2.3 6.47 10.31 A2V N D 180706.29+494237.6
18071+4943 STT 344 2009 27 140 2.3 6.47 10.31 A2V N D 180706.29+494237.6

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