20275-0206 S 749 AC

 
 
20h 27m 27.56s -02° 06' 10.5" P.A. 329.00 sep 45.6 mag 6.76,11.30 Sp F5V dist. 45.79 pc (149.37 l.y.)
 
 
Coord 2000 20275-0206 Discov num S   749 Comp AC Coord arcsec 2000 20 27 27.56 -02 06 10.5
Date first 1891 Date last 2022 Obs 11
Pa first 314 Pa last 328.6 P.A. Now (θ) 328.6°
Sep first 44.9 Sep last 45.59 Sep. Now (ρ) 45.59"
Mag pri 6.76 Mag sec 11.30 delta mag (ΔM) 4.54 Spectral class F5V (yellow-white)
Pri motion ra -065 Sec motion ra +000
Pri motion dec -069 Sec motion dec +001
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=1.008
This double is not physical.
 
 
20275-0206 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 144450 20 27 28 -02 06 10 LSC 89 Aa,Ab 2015 4 197 0.0 7.30 7.70 0.40
Show HD 194765 144450 20 27 28 -02 06 10 S 749 AB 2022 45 189 60.0 6.76 7.51 0.75
Show 144450 20 27 28 -02 06 10 S 749 AC 2022 11 329 45.6 6.76 11.30 4.54 <===
Show 144450 20 27 28 -02 06 10 S 749 AD 2022 10 269 89.9 6.76 12.37 5.61
Show 20 27 26 -02 05 33 S 749 CD 2022 13 239 77.5 10.80 11.00 0.20
Show 20 27 26 -02 05 33 S 749 CE 2022 7 197 18.8 10.80 13.70 2.90
Show 20 27 21 -02 06 14 S 749 DF 2022 8 26 6.7 11.00 13.60 2.60
Septuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquila SAO 144450 HIP 100896 Tycho2 5167-00198-1
Gaia DR2 4228891667990334976 HD 194765 BD BD-02 5283 Distance 45.79
Distance ly 149.37
 
 
WDS 20275-0206 S 749 AC : NOTES
 
 
discov_num notes refcode
S 749 AB: B is BD-02@5282.
AB: HJL 280. HJL1986
AB: SHY 331. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
This cannot be the close 160.8-d spectroscopic binary. Grf2014b
AB: A is SB2, P=160.83d (Halbwachs et al. 2012) HJL2012b
AC: H 5 35. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Grf2014b not - Griffin, R.F. 2014Obs...134..109G
Grf2014b Observatory 134, 109, 2014
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)
HJL2012b not - Halbwachs, J.L., Mayor, M., & Udry, S. 2012MNRAS.422...14H
HJL2012b MNRAS 422, 14, 2012
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
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 LSC Lowell-Southern Connecticut
3 S South, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20275-0206 S 749 AC 2002 7 327 44.6 6.76 10.80 F7V N D 202727.56-020610.5
20275-0206 S 749 AC 2015 10 329 45.3 6.76 11.30 F7V NU 202727.56-020610.5
20275-0206 S 749 AC 2022 11 329 45.6 6.76 11.30 F5V NU 202727.56-020610.5

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WDS 20275-0206 S 749 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20275-0206 S 749 AC : MEASURES
 
 
No records found.

 
 
WDS 20275-0206 : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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WDS 20275-0206 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.