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Current system
21555+2942
HO 609 AB


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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21555+2942 HO 609 AB

 
 
21h 55m 12.36s +29° 43' 33.1" P.A. 356.00 sep 3.3 mag 12.00,11.90
 
 
Coord 2000 21555+2942 Discov num HO  609 Comp AB Coord arcsec 2000 21 55 12.36 +29 43 33.1
Date first 1893 Date last 2016 Obs 30
Pa first 356 Pa last 356.1 P.A. Now (θ) 356.1°
Sep first 1.8 Sep last 3.296 Sep. Now (ρ) 3.296"
Mag pri 12.00 Mag sec 11.90 delta mag (ΔM) 0.1 Spectral class
Pri motion ra -014 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes N R (See Notes, Red magnitudes)
Nature of this double is uncertain.
 
 
21555+2942 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 55 12 +29 43 33 HO 609 AB 2016 30 356 3.3 12.00 11.90 0.10 <===
Show 21 55 12 +29 43 33 HO 609 AC 2015 11 132 22.1 12.00 14.10 2.10
Show 21 55 12 +29 43 33 HO 609 AD 2015 11 147 30.4 12.00 13.50 1.50
Show 21 55 12 +29 43 33 HO 609 AE 2015 11 347 31.7 12.00 14.02 2.02
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus Gaia DR2 1896567363600388992
 
 
WDS 21555+2942 HO 609 AB : NOTES
 
 
discov_num notes refcode
HO 609 Pair is much fainter than given in the ADS; hence the discordant
separations. Three faint stars are in the field, two south following,
one north preceding. B__1963a
 
 
REFERENCES
 
 
refcode metd author reference
B__1963a Ma - van den Bos, W.H. 1963AJ.....68...57V
B__1963a AJ 68, 57, 1963
 
 
DISCOVERER
 
 
idgroup discov author
1 HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21555+2942 HO 609 AB 2007 18 176 3.3 11.50 11.80 N 215512.36+294334.6
21555+2942 HO 609 AB 2010 19 177 3.2 11.50 11.80 N 215512.36+294334.6
21555+2942 HO 609 AB 2012 21 177 3.2 11.50 11.80 N 215512.36+294334.6
21555+2942 HO 609 AB 2013 26 356 3.3 12.00 11.90 N R 215512.36+294333.1
21555+2942 HO 609 AB 2015 27 356 3.3 12.00 11.90 N R 215512.36+294333.1
21555+2942 HO 609 AB 2016 30 356 3.3 12.00 11.90 N R 215512.36+294333.1

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 21555+2942 HO 609 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21555+2942 HO 609 AB : MEASURES
 
 
No records found.

 
 
WDS 21555+2942 : VIRTUAL EYEPIECE
 
 

21555+2942 HO 609A mag 12 21555+2942 HO 609B sep 3.3 P.A. 356.60 mag 11.9 21555+2942 HO 609C sep 20.6 P.A. 136.10 mag 14.1 21555+2942 HO 609D sep 29.2 P.A. 150.10 mag 13.5 21555+2942 HO 609E sep 31.5 P.A. 348.80 mag 14.02 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21555+2942 : ALADIN DSS IMAGE @ 21h 55m 12.36s +29° 43' 33.1"
 
 
 
 
WDS 21555+2942 HO 609 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21555+2942 HO 609AB distance=0' 21564+3001 MLB 721AB distance=24' 21564+3001 MLB 721AC distance=24' 21572+2938 TDT3258 distance=27' 21530+2939 BRT 59 distance=27' 21575+2923 UC 4612 distance=37' 21587+2949 BUP 231 distance=46' 21565+2900 HJ 1706 distance=47' 21538+2856 MLB 495 distance=51' 21540+2852 GRV 519 distance=54' 21553+2850 COU 836 distance=54' 21575+2856 LEP 104 distance=57' 21561+2846 COU 837AB distance=59' 21561+2846 GII 104AC distance=59' 21510+2911 A 889AB distance=64' 21510+2911 A 889Aa,Ab distance=64' 21516+3030 MLB 669 distance=66' 21517+2856 HLD 49 distance=67' 21517+2852 SHN 256 distance=70' 21566+3053 HDS3119 distance=72' 22003+2922 MLB 497 distance=72' 22001+2909 BRT 60 distance=74' 21556+2823 MLB 577BC distance=80' 21556+2823 MLB 577AB distance=81' 21511+3046 DEA 89 distance=82' 21539+2821 WSI 8 distance=85' 21524+2823 NSN 67 distance=90' 21534+3115 TDT3217 distance=95' 21494+3045 STF2829 distance=98' 21494+3048 GRV 511 distance=99' 21568+3125 BRT 291 distance=103' 21473+2932 STJ 58 distance=104' 21470+2930 GRV 503 distance=108' 21559+2753 HJ 1704 distance=110' 21474+2855 AG 420 distance=114' 21469+2907 CVR 919 distance=115' 21580+2755 KPP3375 distance=115' 22012+2818 RAO 691 distance=117' 21596+3126 LDS4934 distance=117' 21593+2800 MLB 578 distance=117' 22025+2834 HEI 825 distance=118' 21559+3141 ES 2360 distance=119' 21521+2748 HO 171 distance=123' 21458+2954 TDT3146 distance=123' 21458+2945 DAM 236 distance=124' 21474+2834 A 300AB distance=124' 21474+2834 A 300AC distance=124' 21474+2834 A 300AD distance=124' 21505+2756 AZC 116 distance=125' 22045+2915 GRV 539AB distance=125' 22045+2915 GRV 539AC distance=125' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 21555+2942 HO 609 AB 356 3.3
Show 21555+2942 HO 609 AC 132 22.1
Show 21555+2942 HO 609 AD 147 30.4
Show 21555+2942 HO 609 AE 347 31.7
Show 21564+3001 MLB 721 AB 15 1.6 24
Show 21564+3001 MLB 721 AC 200 6.9 24
Show 21572+2938 TDT3258 262 1.8 27
Show 21530+2939 BRT 59 355 4.4 27
Show 21575+2923 UC 4612 23 64.1 37
Show 21587+2949 BUP 231 76 55.4 46
Show 21565+2900 HJ 1706 260 10.0 47
Show 21538+2856 MLB 495 134 4.8 51
Show 21540+2852 GRV 519 318 22.1 54
Show 21553+2850 COU 836 161 1.3 54
Show 21575+2856 LEP 104 189 85.0 57
Show 21561+2846 COU 837 AB 150 1.2 59
Show 21561+2846 GII 104 AC 105 1.9 59
Show 21510+2911 A 889 AB 15 0.2 64
Show 21510+2911 A 889 Aa,Ab 323 0.0 64
Show 21516+3030 MLB 669 309 3.2 66
Show 21517+2856 HLD 49 341 2.1 67
Show 21517+2852 SHN 256 -1 0.6 70
Show 21566+3053 HDS3119 33 0.6 72
Show 22003+2922 MLB 497 185 7.7 72
Show 22001+2909 BRT 60 163 4.0 74
Show 21556+2823 MLB 577 BC 18 6.4 80
Show 21556+2823 MLB 577 AB 300 48.8 81
Show 21511+3046 DEA 89 204 14.8 82
Show 21539+2821 WSI 8 142 0.1 85
Show 21524+2823 NSN 67 285 5.1 90
Show 21534+3115 TDT3217 327 4.2 95
Show 21494+3045 STF2829 15 17.1 98
Show 21494+3048 GRV 511 228 40.4 99
Show 21568+3125 BRT 291 297 1.3 103
Show 21473+2932 STJ 58 193 1.8 104
Show 21470+2930 GRV 503 331 20.4 108
Show 21559+2753 HJ 1704 317 5.6 110
Show 21474+2855 AG 420 145 7.5 114
Show 21469+2907 CVR 919 201 23.5 115
Show 21580+2755 KPP3375 114 14.2 115
Show 22012+2818 RAO 691 298 0.3 117
Show 21596+3126 LDS4934 255 10.9 117
Show 21593+2800 MLB 578 151 3.1 117
Show 22025+2834 HEI 825 201 2.9 118
Show 21559+3141 ES 2360 226 4.2 119
Show 21521+2748 HO 171 342 0.8 123
Show 21458+2954 TDT3146 359 2.5 123
Show 21458+2945 DAM 236 143 5.9 124
Show 21474+2834 A 300 AB 252 2.3 124
Show 21474+2834 A 300 AC 29 7.5 124
Show 21474+2834 A 300 AD 170 8.4 124

 
 
WDS 21555+2942 : COMPONENTS
 
 
  A B C D
B pa=356.6°
sep=3.29"
 
C pa=136.1°
sep=20.55"
pa=141.4°
sep=23.15"
 
D pa=150.1°
sep=29.20"
pa=152.7°
sep=32.18"
pa=178.3°
sep=10.50"
 
E pa=348.8°
sep=31.54"
pa=347.8°
sep=28.29"
pa=336.0°
sep=50.09"
pa=339.8°
sep=59.95"
 
 
21555+2942 A
 
 
Coord arcsec 2000 215512.36+294333.1 Mag 12 PmRA -14.00 PmDE -8.0
 
 
21555+2942 B
 
 
Coord arcsec 2000 215512.35+294336.4 Mag 11.9 Calc delta mag 0.1 Calc coord yes
 
 
21555+2942 C
 
 
Coord arcsec 2000 215513.45+294318.3 Mag 14.1 PmRA 1.00 PmDE -5.0
Calc delta mag 2.1 Calc coord yes
 
 
21555+2942 D
 
 
Coord arcsec 2000 215513.48+294307.8 Mag 13.5 PmRA 0.00 PmDE 6.0
Calc delta mag 1.5 Calc coord yes
 
 
21555+2942 E
 
 
Coord arcsec 2000 215511.89+294404.0 Mag 14.02 Calc delta mag 2.02 Calc coord yes