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Doubles in session


Current system
20284+1713
HJ 2969


Nearby doubles
18' : 20292+1728
BRT2477

20' : 20281+1654
HEI 180

20' : 20298+1712
J 510

25' : 20292+1735
BPMA249

26' : 20269+1727
BPM2164

28' : 20268+1656
HO 129

28' : 20267+1701
BRT1342

31' : 20270+1736
BPM2167

33' : 20262+1721
BPM2158

35' : 20266+1736
GWP2948

35' : 20307+1718
BPM2178

36' : 20267+1646
TVB 314

41' : 20269+1747
BPM2163

42' : 20263+1743
HJ 2962

46' : 20311+1648
ROE 14AB

46' : 20276+1629
GWP2953

50' : 20280+1624
BPM2170

53' : 20291+1622
BPM2172

53' : 20278+1805
HJL1103

58' : 20294+1617
BPM2174

63' : 20247+1747
BPMA247

68' : 20319+1758
BPM2183

68' : 20322+1754
GWP2966

71' : 20332+1659
BPM2185

74' : 20268+1603
GWP2950

78' : 20253+1609
BPM2150



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.

20284+1713 HJ 2969

 
 
20h 28m 22.83s +17° 12' 55.6" P.A. 170.00 sep 6.0 mag 9.60,10.00
 
 
Coord 2000 20284+1713 Discov num HJ 2969 Comp Coord arcsec 2000 20 28 22.83 +17 12 55.6
Date first 1831 Date last 2018 Obs 17
Pa first 172 Pa last 169.5 P.A. Now (θ) 169.5°
Sep first 4.0 Sep last 5.986 Sep. Now (ρ) 5.986"
Mag pri 9.60 Mag sec 10.00 delta mag (ΔM) 0.4 Spectral class
Pri motion ra -037 Sec motion ra -015
Pri motion dec +112 Sec motion dec -025
Notes
rPM=1.176
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1811979258318036352
 
 
WDS 20284+1713 HJ 2969 : 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
20284+1713 HJ 2969 2004 7 169 5.8 9.60 10.00 D 202822.83+171255.6
20284+1713 HJ 2969 2010 9 170 5.7 9.60 10.00 202822.83+171255.6
20284+1713 HJ 2969 2016 10 170 5.9 9.60 10.00 202822.83+171255.6
20284+1713 HJ 2969 2018 15 170 6.0 9.60 10.00 202822.83+171255.6

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

 
 
WDS 20284+1713 HJ 2969 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20284+1713 HJ 2969 : MEASURES
 
 
No records found.

 
 
WDS 20284+1713 : VIRTUAL EYEPIECE
 
 

20284+1713 HJ 2969A mag 9.6 20284+1713 HJ 2969B sep 6.0 P.A. 170.00 mag 10 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 20284+1713 : ALADIN DSS IMAGE @ 20h 28m 22.83s +17° 12' 55.6"
 
 
 
 
WDS 20284+1713 HJ 2969 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20284+1713 HJ 2969 distance=0' 20292+1728 BRT2477 distance=18' 20281+1654 HEI 180 distance=20' 20298+1712 J 510 distance=20' 20292+1735 BPMA249 distance=25' 20269+1727 BPM2164 distance=26' 20268+1656 HO 129 distance=28' 20267+1701 BRT1342 distance=28' 20270+1736 BPM2167 distance=31' 20262+1721 BPM2158 distance=33' 20266+1736 GWP2948 distance=35' 20307+1718 BPM2178 distance=35' 20267+1646 TVB 314 distance=36' 20269+1747 BPM2163 distance=41' 20263+1743 HJ 2962 distance=42' 20311+1648 J 563BC distance=46' 20311+1648 ROE 14AB distance=46' 20276+1629 GWP2953 distance=46' 20280+1624 BPM2170 distance=50' 20291+1622 BPM2172 distance=53' 20278+1805 HJL1103 distance=53' 20294+1617 BPM2174 distance=58' 20247+1747 BPMA247 distance=63' 20319+1758 BPM2183 distance=68' 20322+1754 GWP2966 distance=68' 20332+1659 BPM2185 distance=71' 20268+1603 GWP2950 distance=74' 20253+1609 BPM2150 distance=78' 20338+1704 BPM2188 distance=78' 20229+1728 BPMA246 distance=81' 20329+1803 HJ 2977 distance=82' 20340+1659 BPM2190 distance=82' 20243+1617 BPM2144 distance=82' 20305+1829 J 2313 distance=83' 20311+1600 BPM2181 distance=84' 20271+1549 BPM2168 distance=86' 20255+1555 BPM2152 distance=88' 20235+1811 J 839 distance=90' 20345+1735 BPM2191 distance=91' 20224+1745 BPM2132 distance=91' 20259+1549 BPM2154 distance=92' 20348+1726 COU 223AB distance=93' 20348+1726 COU 223AC distance=93' 20311+1548 A 1675 distance=94' 20283+1846 HO 131AB distance=94' 20283+1846 HO 131AC distance=94' 20283+1846 HO 131AD distance=94' 20270+1541 BPM2165 distance=95' 20218+1729 BPM2128 distance=95' 20348+1644 BPM2196BC distance=96' 20348+1644 BPM2195AB distance=98' 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 20284+1713 HJ 2969 170 6.0
Show 20292+1728 BRT2477 155 4.0 18
Show 20281+1654 HEI 180 166 1.1 20
Show 20298+1712 J 510 248 4.9 20
Show 20292+1735 BPMA249 155 287.6 25
Show 20269+1727 BPM2164 20 110.5 26
Show 20268+1656 HO 129 163 4.7 28
Show 20267+1701 BRT1342 90 5.8 28
Show 20270+1736 BPM2167 207 101.3 31
Show 20262+1721 BPM2158 251 115.1 33
Show 20266+1736 GWP2948 182 22.1 35
Show 20307+1718 BPM2178 217 110.0 35
Show 20267+1646 TVB 314 209 17.2 36
Show 20269+1747 BPM2163 31 113.7 41
Show 20263+1743 HJ 2962 103 13.4 42
Show 20311+1648 J 563 BC 215 5.1 46
Show 20311+1648 ROE 14 AB 262 7.0 46
Show 20276+1629 GWP2953 29 69.7 46
Show 20280+1624 BPM2170 207 80.4 50
Show 20291+1622 BPM2172 155 50.8 53
Show 20278+1805 HJL1103 82 126.5 53
Show 20294+1617 BPM2174 211 87.3 58
Show 20247+1747 BPMA247 40 194.2 63
Show 20319+1758 BPM2183 115 110.7 68
Show 20322+1754 GWP2966 75 121.0 68
Show 20332+1659 BPM2185 75 70.1 71
Show 20268+1603 GWP2950 44 20.6 74
Show 20253+1609 BPM2150 238 101.1 78
Show 20338+1704 BPM2188 244 105.7 78
Show 20229+1728 BPMA246 219 171.9 81
Show 20329+1803 HJ 2977 317 20.1 82
Show 20340+1659 BPM2190 300 100.0 82
Show 20243+1617 BPM2144 81 65.0 82
Show 20305+1829 J 2313 137 6.2 83
Show 20311+1600 BPM2181 57 94.1 84
Show 20271+1549 BPM2168 55 108.3 86
Show 20255+1555 BPM2152 335 107.4 88
Show 20235+1811 J 839 347 2.1 90
Show 20345+1735 BPM2191 324 92.1 91
Show 20224+1745 BPM2132 278 95.1 91
Show 20259+1549 BPM2154 206 93.0 92
Show 20348+1726 COU 223 AB 161 0.4 93
Show 20348+1726 COU 223 AC 288 1.3 93
Show 20311+1548 A 1675 294 0.1 94
Show 20283+1846 HO 131 AB 334 3.4 94
Show 20283+1846 HO 131 AC 69 64.4 94
Show 20283+1846 HO 131 AD 97 76.9 94
Show 20270+1541 BPM2165 182 62.1 95
Show 20218+1729 BPM2128 283 75.4 95
Show 20348+1644 BPM2196 BC 128 63.7 96
Show 20348+1644 BPM2195 AB 302 71.3 98

 
 
WDS 20284+1713 : COMPONENTS
 
 
  A
B pa=170.0°
sep=5.98"
 
 
20284+1713 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202822.83+171255.6 Mag 9.6 PmRA -37.00
PmDE 112.0
 
 
20284+1713 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202822.90+171249.7 Mag 10 PmRA -15.00
PmDE -25.0 Calc delta mag 0.4 Calc coord yes