17208-1251 SHJ 247 (Nu Ser)

 
 
17h 20m 49.66s -12 50' 48.8" P.A. 25 sep 45.4 mag 4.33,9.44 Sp A2V dist. 62.31 pc (203.26 l.y.)
 
 
Coord 2000
17208-1251
Discov num
SHJ 247
Comp
Coord arcsec 2000
17 20 49.66 -12 50 48.8
Date first
1821
Date last
2013
Obs
30
Pa first
31
Pa last
25
P.A. Now (θ)
25°
Sep first
50.2
Sep last
45.4
Sep. Now (ρ)
45.4"
Mag pri
4.33
Mag sec
9.44
delta mag (ΔM)
5.11
Spectral class
A2V (white)
Pri motion ra
+043
Sec motion ra
+015
Pri motion dec
+003
Sec motion dec
+000
Notes
N L (See Notes, Linear solution)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Nu Ser
Constellation
Serpens
SAO
160479
HIP
84880
Tycho2
5653-01431-1
HD
156928
HR
6446
GC
23424
BD
BD-12 4722
Bayer
Nu Serpentis
Bayer name
Nu Ser
Flamsteed
53 Serpentis
Flamsteed name
53 Ser
Distance
62.31
Distance ly
203.26
last precise pa
25.3
last precise sep
45.35
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17208-1251 SHJ 247 2002 22 26 45.9 4.33 9.44 A2V NLD 172049.66-125048.8
17208-1251 SHJ 247 2009 25 25 44.5 4.33 9.44 A2V NLD 172049.66-125048.8
17208-1251 SHJ 247 2012 26 27 45.3 4.33 9.44 A2V NLD 172049.66-125048.8
17208-1251 SHJ 247 2013 29 25 45.4 4.33 9.44 A2V NLD 172049.66-125048.8

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