22019+5506 HJ 1718 AC

 
 
22h 01m 57.00s +55° 05' 34.0" P.A. 268.00 sep 16.6 mag 11.16,12.25 Sp A1V
 
 
Coord 2000 22019+5506 Discov num HJ 1718 Comp AC Coord arcsec 2000 22 01 57.00 +55 05 34.0
Date first 1908 Date last 2015 Obs 9
Pa first 269 Pa last 267.5 P.A. Now (θ) 267.5°
Sep first 16.5 Sep last 16.597 Sep. Now (ρ) 16.597"
Mag pri 11.16 Mag sec 12.25 delta mag (ΔM) 1.09 Spectral class A1V (white)
Pri motion ra -004 Sec motion ra -017
Pri motion dec -003 Sec motion dec -007
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.74
This double is not physical.
 
 
22019+5506 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 22 01 57 +55 05 34 HJ 1718 AB 2015 13 219 9.3 11.16 12.24 1.08
Show 22 01 57 +55 05 34 HJ 1718 AC 2015 9 268 16.6 11.16 12.25 1.09 <===
Show 22 01 57 +55 05 34 ABH 157 AD 2015 7 269 11.6 11.16 14.60 3.44
Show 22 01 57 +55 05 34 ABH 157 AE 2014 8 144 31.1 11.16 12.90 1.74
Show 22 01 57 +55 05 34 ABH 157 AF 2015 8 96 14.7 11.16 15.76 4.60
Show 22 01 57 +55 05 34 ABH 157 AG 2015 8 348 38.7 11.16 14.63 3.47
Show 22 01 57 +55 05 34 ABH 157 AH 2015 8 322 32.8 11.16 14.29 3.13
Show 22 01 57 +55 05 34 ABH 157 AI 2015 8 281 30.8 11.16 14.56 3.40
Show 22 01 57 +55 05 34 ABH 157 AJ 2015 8 239 47.9 11.16 13.88 2.72
Show 22 01 57 +55 05 34 ABH 157 AK 2015 8 226 40.7 11.16 13.80 2.64
Show 22 01 57 +55 05 34 ABH 157 AL 2015 8 146 66.5 11.16 15.59 4.43
Show 22 01 57 +55 05 34 ABH 157 AM 2015 8 282 68.5 11.16 14.26 3.10
Show 22 01 56 +55 05 27 HJ 1718 BC 2015 10 301 12.6 12.24 12.25 0.01
Show 22 01 55 +55 05 33 HJ 1718 CD 2018 7 84 5.0 12.25 14.60 2.35
13-fold system
13 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3973-01501-1 Gaia DR2 2197814449907564032
 
 
WDS 22019+5506 HJ 1718 AC : NOTES
 
 
discov_num notes refcode
HJ 1718 AB: HJ 1719 = STI2607. Burnham's note for HJ 1719 quotes Herschel as Bu_1906
mentioning "a third star 12m from B, 4arcsec; also a fourth." Burnham
also says "The other stars referred to are 12.5m, 268.2deg:
15.9arcsec; and 12.0m, 145.4deg: 30.9arcsec." These appear to match
the BC, AC, and AE pairs in the HJ 1718 mutiple system. We therefore
conclude that HJ 1719AB and HJ 1718AB are the same pair.
 
 
REFERENCES
 
 
refcode metd author reference
Bu_1906 Ma j Burnham, S.W. 1906QB821.B972.....
Bu_1906 +M Burnham Double Star Cat., 1906
 
 
DISCOVERER
 
 
idgroup discov author
1 ABH Abt, H.A.
29 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
22019+5506 HJ 1718 AC 1999 3 268 16.5 11.16 12.25 A1V D 220157.00+550533.8
22019+5506 HJ 1718 AC 2008 5 268 16.7 11.16 12.25 A1V N DU 220157.00+550533.8
22019+5506 HJ 1718 AC 2015 6 268 16.6 11.16 12.25 A1V NU 220157.00+550534.0

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WDS 22019+5506 HJ 1718 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 22019+5506 HJ 1718 AC : MEASURES
 
 
No records found.

 
 
WDS 22019+5506 : VIRTUAL EYEPIECE
 
 

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WDS 22019+5506 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.