20172-2516 HJ 2942

 
 
20h 17m 11.53s -25° 15' 35.5" P.A. 223.00 sep 11.6 mag 10.62,10.38
 
 
Coord 2000 20172-2516 Discov num HJ 2942 Comp Coord arcsec 2000 20 17 11.53 -25 15 35.5
Date first 1830 Date last 2015 Obs 10
Pa first 212 Pa last 223.1 P.A. Now (θ) 223.1°
Sep first 12.5 Sep last 11.565 Sep. Now (ρ) 11.565"
Mag pri 10.62 Mag sec 10.38 delta mag (ΔM) 0.24 Spectral class
Pri motion ra +010 Sec motion ra +003
Pri motion dec -023 Sec motion dec -003
Notes
rPM=0.845
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Capricornus Gaia DR2 6847633215200212352
 
 
WDS 20172-2516 HJ 2942 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20172-2516 HJ 2942 1998 7 222 11.8 10.40 10.90 D 201711.53-251535.5
20172-2516 HJ 2942 1999 8 222 11.8 10.40 10.90 D 201711.53-251535.5
20172-2516 HJ 2942 2010 9 222 11.3 10.62 10.38 201711.53-251535.5
20172-2516 HJ 2942 2015 10 223 11.6 10.62 10.38 201711.53-251535.5

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WDS 20172-2516 HJ 2942 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20172-2516 HJ 2942 : MEASURES
 
 
No records found.

 
 
WDS 20172-2516 : VIRTUAL EYEPIECE
 
 

20172-2516 HJ 2942A mag 10.62 20172-2516 HJ 2942B sep 11.1 P.A. 220.20 mag 10.38 virtual eyepiece
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Radius:
Components only
 
 
WDS 20172-2516 : ALADIN DSS IMAGE @ 20h 17m 11.53s -25° 15' 35.5"
 
 
 
 
WDS 20172-2516 HJ 2942 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20172-2516  HJ 2942 distance=0' 20144-2516  UC 4125 distance=39' 20207-2447  RST3257 distance=56' 20192-2610  RST1067 distance=62' 20156-2412  HLD 157 distance=68' 20196-2415  UC 4146 distance=69' 20195-2620  B   476 distance=73' 20120-2548  RST1064 distance=77' 20212-2420  RST3258 distance=79' 20113-2533  TDT2063 distance=83' 20177-2352  KPP2147 distance=85' 20139-2631  HJ 2935AB distance=88' 20139-2631  B  9039AC distance=88' 20139-2631  B  9039AD distance=88' 20139-2631  B  9039DE distance=88' 20186-2342  OCC 694 distance=96' 20242-2459  SEE 418 distance=97' 20101-2512  OCC 121 distance=97' 20105-2428  UC 4112 distance=103' 20097-2532  B   468AB distance=104' 20250-2452  UC 4172 distance=109' 20252-2506  UC 4174 distance=110' 20228-2642  TDT2222 distance=115' 20139-2328  KPP 908 distance=117' 20240-2630  UC 4166 distance=119' 20090-2434  TDT2024 distance=119' 20228-2649  B   480 distance=121' 20236-2644  HO  456 distance=124' 20091-2613  MET  88AB distance=124' 20091-2613  MET  88AC distance=124' 20091-2613  VIG  19AD distance=124' 20091-2613  VIG  19AE distance=124' 20091-2613  VIG  19AF distance=124' 20091-2613  VIG  19AG distance=124' 20091-2613  VIG  19AH distance=124' 20084-2435  B   467 distance=127' 20208-2720  SEE 414 distance=134' 20071-2509  TDT1993 distance=138' 20271-2438  B   483 distance=141' 20107-2716  BRT3090 distance=149' 20265-2638  HWE  54 distance=151' 20257-2341  HJ 2957AB distance=151' 20257-2341  DAW 227AC distance=151' 20163-2748  LDS5902 distance=154' 20185-2749  B   475 distance=155' 20059-2455  TDT1972 distance=155' 20068-2620  TDT1988 distance=156' 20191-2242  ARA2271 distance=157' 20084-2700  I  1413 distance=158' 20202-2750  SEE 416AB distance=160' 20202-2750  SEE 416AB,C distance=160' 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 20172-2516 HJ 2942 223 11.6
Show 20144-2516 UC 4125 304 30.1 39
Show 20207-2447 RST3257 66 2.8 56
Show 20192-2610 RST1067 278 5.0 62
Show 20156-2412 HLD 157 239 2.2 68
Show 20196-2415 UC 4146 155 22.8 69
Show 20195-2620 B 476 281 0.4 73
Show 20120-2548 RST1064 257 3.8 77
Show 20212-2420 RST3258 134 1.1 79
Show 20113-2533 TDT2063 32 0.5 83
Show 20177-2352 KPP2147 316 17.6 85
Show 20139-2631 HJ 2935 AB 223 16.1 88
Show 20139-2631 B 9039 AC 34 22.9 88
Show 20139-2631 B 9039 AD 195 53.5 88
Show 20139-2631 B 9039 DE 37 7.1 88
Show 20186-2342 OCC 694 -1 0.1 96
Show 20242-2459 SEE 418 54 2.7 97
Show 20101-2512 OCC 121 -1 0.1 97
Show 20105-2428 UC 4112 236 52.7 103
Show 20097-2532 B 468 AB 359 4.6 104
Show 20250-2452 UC 4172 304 15.6 109
Show 20252-2506 UC 4174 145 39.1 110
Show 20228-2642 TDT2222 22 0.6 115
Show 20139-2328 KPP 908 192 7.5 117
Show 20240-2630 UC 4166 332 59.9 119
Show 20090-2434 TDT2024 87 0.6 119
Show 20228-2649 B 480 168 1.1 121
Show 20236-2644 HO 456 194 13.2 124
Show 20091-2613 MET 88 AB 148 10.4 124
Show 20091-2613 MET 88 AC 224 10.8 124
Show 20091-2613 VIG 19 AD 140 4.8 124
Show 20091-2613 VIG 19 AE 74 7.6 124
Show 20091-2613 VIG 19 AF 352 8.1 124
Show 20091-2613 VIG 19 AG 305 9.0 124
Show 20091-2613 VIG 19 AH 75 12.3 124
Show 20084-2435 B 467 215 0.5 127
Show 20208-2720 SEE 414 53 2.2 134
Show 20071-2509 TDT1993 73 0.5 138
Show 20271-2438 B 483 57 4.4 141
Show 20107-2716 BRT3090 243 4.7 149
Show 20265-2638 HWE 54 59 2.8 151
Show 20257-2341 HJ 2957 AB 276 15.0 151
Show 20257-2341 DAW 227 AC 56 19.7 151
Show 20163-2748 LDS5902 297 281.0 154
Show 20185-2749 B 475 346 4.0 155
Show 20059-2455 TDT1972 211 2.9 155
Show 20068-2620 TDT1988 252 0.6 156
Show 20191-2242 ARA2271 345 12.6 157
Show 20084-2700 I 1413 83 4.5 158
Show 20202-2750 SEE 416 AB 248 1.1 160
Show 20202-2750 SEE 416 AB,C 261 25.0 160

 
 
WDS 20172-2516 : COMPONENTS
 
 
  A
B pa=220.2°
sep=11.06"
 
 
20172-2516 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 201711.53-251535.5 Mag 10.62 PmRA 10.00
PmDE -23.0
 
 
20172-2516 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201711.00-251543.9 Mag 10.38 PmRA 3.00
PmDE -3.0 Calc delta mag 0.24 Calc coord yes