stampa
Login

Too lazy to login each time? Click on "Remember me" at login and forget about it!
Register here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
20294+0330
HJ 2970


Nearby doubles
7' : 20291+0325
HJ 2968

15' : 20302+0321
DOO 87

24' : 20286+0351
HJ 2967

27' : 20283+0351
BAL2533

28' : 20307+0311
BAL2029

31' : 20278+0311
HJ 917

33' : 20274+0317
BAL2025

38' : 20309+0400
BAL2538

47' : 20321+0330
J 2573

57' : 20321+0251
BAL2030

62' : 20257+0304
BAL2024

64' : 20298+0227
BAL2027

67' : 20253+0355
UC 4175

69' : 20306+0224
BAL2028

73' : 20324+0426
A 2281

74' : 20285+0443
J 3220

74' : 20247+0302
J 1342

78' : 20311+0444
UC 4205

80' : 20341+0256
BAL2031

81' : 20347+0321
CRC 38

81' : 20315+0444
BAL2966

83' : 20310+0211
J 561

86' : 20251+0233
BAL2023

92' : 20251+0225
LDS4841

95' : 20340+0433
A 2282

96' : 20302+0156
BAL1562



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20294+0330 HJ 2970

 
 
20h 29m 23.10s +03° 30' 04.5" P.A. 180.00 sep 12.0 mag 10.38,10.98
 
 
Coord 2000 20294+0330 Discov num HJ 2970 Comp Coord arcsec 2000 20 29 23.10 +03 30 04.5
Date first 1830 Date last 2015 Obs 17
Pa first 184 Pa last 180.1 P.A. Now (θ) 180.1°
Sep first 8.0 Sep last 12 Sep. Now (ρ) 12"
Mag pri 10.38 Mag sec 10.98 delta mag (ΔM) 0.6 Spectral class
Pri motion ra +008 Sec motion ra +010
Pri motion dec -010 Sec motion dec -011
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.15 (< 0.3, Physical double)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 0501-02201-1 Gaia DR2 4244814142549203584
 
 
WDS 20294+0330 HJ 2970 : NOTES
 
 
discov_num notes refcode
HJ 2970 BAL 2536.
 
 
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
20294+0330 HJ 2970 2000 9 180 12.0 10.38 10.98 N D 202923.10+033004.5
20294+0330 HJ 2970 2011 10 180 12.0 10.38 10.98 N D 202923.10+033004.5
20294+0330 HJ 2970 2015 13 180 12.0 10.38 10.98 N 202923.10+033004.5

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

 
 
WDS 20294+0330 HJ 2970 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20294+0330 HJ 2970 : MEASURES
 
 
No records found.

 
 
WDS 20294+0330 : VIRTUAL EYEPIECE
 
 

20294+0330 HJ 2970A mag 10.38 20294+0330 HJ 2970B sep 12.0 P.A. 180.10 mag 10.98 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 20294+0330 : ALADIN DSS IMAGE @ 20h 29m 23.10s +03° 30' 04.5"
 
 
 
 
WDS 20294+0330 HJ 2970 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20294+0330 HJ 2970 distance=0' 20291+0325 HJ 2968 distance=7' 20302+0321 DOO 87 distance=15' 20286+0351 HJ 2967 distance=24' 20283+0351 BAL2533 distance=27' 20307+0311 BAL2029 distance=28' 20278+0311 HJ 917 distance=31' 20274+0317 BAL2025 distance=33' 20309+0400 BAL2538 distance=38' 20321+0330 J 2573 distance=47' 20321+0251 BAL2030 distance=57' 20257+0304 BAL2024 distance=62' 20298+0227 BAL2027 distance=64' 20253+0355 UC 4175 distance=67' 20306+0224 BAL2028 distance=69' 20324+0426 A 2281 distance=73' 20285+0443 J 3220 distance=74' 20247+0302 J 1342 distance=74' 20311+0444 UC 4205 distance=78' 20341+0256 BAL2031 distance=80' 20347+0321 CRC 38 distance=81' 20315+0444 BAL2966 distance=81' 20310+0211 J 561 distance=83' 20251+0233 BAL2023 distance=86' 20251+0225 LDS4841 distance=92' 20340+0433 A 2282 distance=95' 20302+0156 BAL1562 distance=96' 20327+0453 J 2314AB distance=97' 20327+0453 J 2314AC distance=97' 20353+0239 HJ 2981 distance=103' 20267+0155 J 155BC distance=103' 20253+0453 KPP4195AB distance=104' 20267+0155 J 155AB distance=104' 20295+0514 UC 4199 distance=104' 20330+0201 TDT2361 distance=104' 20263+0156 BAL1557 distance=105' 20312+0513 AG 257 distance=107' 20221+0331 UC 4158 distance=110' 20281+0140 BAL1560 distance=112' 20351+0218 UC 4224 distance=112' 20291+0135 GWP2956AB distance=115' 20291+0135 GWP2957AC distance=115' 20266+0143 BAL1558 distance=116' 20360+0411 J 2192 distance=116' 20293+0132 BAL1561 distance=119' 20373+0332 BAL2539 distance=119' 20214+0336 BAL2532AB distance=120' 20214+0336 BAL2532AC distance=120' 20351+0202 BAL1564 distance=123' 20316+0530 A 395 distance=124' 20331+0525 TDT2364 distance=128' 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 20294+0330 HJ 2970 180 12.0
Show 20291+0325 HJ 2968 50 15.3 7
Show 20302+0321 DOO 87 33 11.9 15
Show 20286+0351 HJ 2967 131 7.1 24
Show 20283+0351 BAL2533 256 19.0 27
Show 20307+0311 BAL2029 141 7.5 28
Show 20278+0311 HJ 917 37 12.8 31
Show 20274+0317 BAL2025 94 10.2 33
Show 20309+0400 BAL2538 202 10.8 38
Show 20321+0330 J 2573 151 4.0 47
Show 20321+0251 BAL2030 286 10.8 57
Show 20257+0304 BAL2024 70 16.1 62
Show 20298+0227 BAL2027 171 4.2 64
Show 20253+0355 UC 4175 87 20.7 67
Show 20306+0224 BAL2028 196 9.5 69
Show 20324+0426 A 2281 63 1.9 73
Show 20285+0443 J 3220 181 3.9 74
Show 20247+0302 J 1342 333 2.4 74
Show 20311+0444 UC 4205 254 48.5 78
Show 20341+0256 BAL2031 334 17.4 80
Show 20347+0321 CRC 38 300 10.5 81
Show 20315+0444 BAL2966 117 10.4 81
Show 20310+0211 J 561 176 4.3 83
Show 20251+0233 BAL2023 330 7.4 86
Show 20251+0225 LDS4841 246 44.6 92
Show 20340+0433 A 2282 166 0.2 95
Show 20302+0156 BAL1562 308 9.0 96
Show 20327+0453 J 2314 AB 70 4.9 97
Show 20327+0453 J 2314 AC 138 19.0 97
Show 20353+0239 HJ 2981 5 12.9 103
Show 20267+0155 J 155 BC 164 3.3 103
Show 20253+0453 KPP4195 AB 16 11.7 104
Show 20267+0155 J 155 AB 348 53.1 104
Show 20295+0514 UC 4199 240 54.1 104
Show 20330+0201 TDT2361 37 0.5 104
Show 20263+0156 BAL1557 211 6.4 105
Show 20312+0513 AG 257 75 1.7 107
Show 20221+0331 UC 4158 218 20.6 110
Show 20281+0140 BAL1560 3 6.6 112
Show 20351+0218 UC 4224 220 16.1 112
Show 20291+0135 GWP2956 AB 250 16.5 115
Show 20291+0135 GWP2957 AC 258 172.4 115
Show 20266+0143 BAL1558 9 18.3 116
Show 20360+0411 J 2192 18 4.8 116
Show 20293+0132 BAL1561 8 15.8 119
Show 20373+0332 BAL2539 77 130.2 119
Show 20214+0336 BAL2532 AB 271 5.3 120
Show 20214+0336 BAL2532 AC 22 7.3 120
Show 20351+0202 BAL1564 268 4.8 123
Show 20316+0530 A 395 160 0.7 124
Show 20331+0525 TDT2364 126 1.9 128

 
 
WDS 20294+0330 : COMPONENTS
 
 
  A
B pa=180.1°
sep=12.00"
 
 
20294+0330 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202923.10+033004.5 Mag 10.38 PmRA 8.00
PmDE -10.0 Tycho2 0501-02201-1
Tycho2
Tycho2 0501-02201-1 Pflag RAmdeg 307.34623752 DEmdeg 3.50124218
PmRA 8.5 PmDE -11.6 E RAmdeg 25 E DEmdeg 31
E pmRA 1.6 E pmDE 1.6 EpRAm 1988.24 EpDEm 1986.08
Num 3 Q RAmdeg 1.6 Q DEmdeg 1.4 Q pmRA 1.5
Q pmDE 1.4 BTmag 10.763 E BTmag 0.046 VTmag 10.375
E VTmag 0.046 Prox 120 TYC T HIP
CCDM RAdeg 307.34621806 DEdeg 3.50127000 EpRA 1990 1.66
EpDE 1990 1.36 E RAdeg 25.6 E DEdeg 31.9 Posflg
Corr -0.2
 
 
20294+0330 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202923.10+032952.5 Mag 10.98 PmRA 10.00
PmDE -11.0 Tycho2 0501-02308-1 Calc delta mag 0.6 Calc coord yes
Tycho2
Tycho2 0501-02308-1 Pflag RAmdeg 307.34621831 DEmdeg 3.49791249
PmRA 7.3 PmDE -12.4 E RAmdeg 38 E DEmdeg 46
E pmRA 1.7 E pmDE 1.6 EpRAm 1984.50 EpDEm 1979.92
Num 3 Q RAmdeg 0.7 Q DEmdeg 0.2 Q pmRA 0.7
Q pmDE 0.2 BTmag 11.349 E BTmag 0.071 VTmag 10.979
E VTmag 0.080 Prox 120 TYC T HIP
CCDM RAdeg 307.34620139 DEdeg 3.49794222 EpRA 1990 1.63
EpDE 1990 1.34 E RAdeg 40.3 E DEdeg 50.4 Posflg
Corr -0.2