16315+0818 SHJ 233 (HD 148979)

 
 
16h 31m 30.62s +08° 17' 38.8" P.A. 71.00 sep 59.2 mag 7.07,8.28 Sp G5 dist. 77.82 pc (253.85 l.y.)
 
 
Coord 2000 16315+0818 Discov num SHJ 233 Comp Coord arcsec 2000 16 31 30.62 +08 17 38.8
Date first 1797 Date last 2017 Obs 37
Pa first 68 Pa last 70.8 P.A. Now (θ) 70.8°
Sep first 63.2 Sep last 59.2 Sep. Now (ρ) 59.2"
Mag pri 7.07 Mag sec 8.28 delta mag (ΔM) 1.21 Spectral class G5 (yellow)
Pri motion ra +037 Sec motion ra +042
Pri motion dec +071 Sec motion dec +073
Notes N Z V (See Notes, Parallax indicates components are physical, Proper motion indicates physical)
rPM=0.064 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 148979 Constellation Hercules SAO 121665 HIP 80926
Tycho2 0960-01707-1 Gaia DR2 4440204608712834432 HD 148979 GC 22217
BD BD+08 3215 Distance 77.82 Distance ly 253.85
 
 
WDS 16315+0818 SHJ 233 (HD 148979) : NOTES
 
 
discov_num notes refcode
SHJ 233 STTA146. B is BD+08@3216. Also known as FRK 8. The equality of
these two systems was noted by Arnold. Arn2004a
HJL 237. HJL1986
SHY 705. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
 
 
REFERENCES
 
 
refcode metd author reference
Arn2004a Mg j Arnold, D. 2004DSO....10....1A
Arn2004a Double Star Observer 10, #1, 2004
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
DISCOVERER
 
 
idgroup discov author
1 SHJ South, J. & Herschel, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16315+0818 SHJ 233 2003 32 70 58.3 7.07 8.28 G5 NZDV 163130.62+081738.8
16315+0818 SHJ 233 2011 32 70 59.4 7.07 8.28 G5 NZDV 163130.62+081738.8
16315+0818 SHJ 233 2013 34 71 58.9 7.07 8.28 G5 NZ V 163130.62+081738.8
16315+0818 SHJ 233 2015 36 71 59.2 7.07 8.28 G5 NZ V 163130.62+081738.8
16315+0818 SHJ 233 2017 38 71 59.2 7.07 8.28 G5 NZ V 163130.62+081738.8

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WDS 16315+0818 SHJ 233 (HD 148979) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 22/06/25 daedalus1 mean difficulty separated 71   Seeing Pickering 8. Primary noticeably brighter. Measures: theta 071, rho 59.85 +/-0.242

 
 
WDS 16315+0818 SHJ 233 (HD 148979) : MEASURES
 
 
No records found.

 
 
WDS 16315+0818 (HD 148979) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 16315+0818 (HD 148979) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.