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Doubles in session


Current system
21495+4716
HJ 1698


Nearby doubles
15' : 21492+4702
COU2317AB

17' : 21511+4711
A 774

24' : 21515+4706
HJ 1701

31' : 21466+4713
HJ 1692

32' : 21526+4714
LI 7AB

40' : 21473+4644
SRW 11AB

41' : 21535+4716
COU2320

45' : 21477+4759
COU2316AB

48' : 21451+4733
CON 42AB

50' : 21470+4759
A 773

54' : 21488+4810
KPP1210

55' : 21547+4730
A 890

55' : 21543+4652
DAM 298

56' : 21441+4707
TDT3125

58' : 21514+4811
TDT3198

59' : 21545+4650
ES 2714

61' : 21552+4700
TDT3240

62' : 21549+4651
DAM 299

62' : 21500+4615
KPP 870

63' : 21555+4703
HJ 1705

64' : 21450+4633
NSN 748

69' : 21532+4619
SLN 43

76' : 21434+4634
BRT1151

78' : 21531+4826
COU2319AB

79' : 21476+4832
TDT3155

82' : 21449+4824
SLN 42



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.

21495+4716 HJ 1698

 
 
21h 49m 30.29s +47° 16' 32.8" P.A. 321.00 sep 7.7 mag 9.86,12.80
 
 
Coord 2000 21495+4716 Discov num HJ 1698 Comp Coord arcsec 2000 21 49 30.29 +47 16 32.8
Date first 1828 Date last 2015 Obs 9
Pa first 336 Pa last 321.1 P.A. Now (θ) 321.1°
Sep first 6.0 Sep last 7.654 Sep. Now (ρ) 7.654"
Mag pri 9.86 Mag sec 12.80 delta mag (ΔM) 2.94 Spectral class
Pri motion ra +002 Sec motion ra -011
Pri motion dec +008 Sec motion dec +019
Notes
rPM=0.776
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3608-01745-1 Gaia DR2 1974768414443509376
 
 
WDS 21495+4716 HJ 1698 : 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
21495+4716 HJ 1698 2000 2 322 7.7 9.86 12.80 D 214930.29+471632.8
21495+4716 HJ 1698 2003 5 322 7.8 9.86 12.80 D 214930.29+471632.8
21495+4716 HJ 1698 2010 6 321 7.0 9.86 12.80 214930.29+471632.8
21495+4716 HJ 1698 2015 6 321 7.7 9.86 12.80 214930.29+471632.8

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

 
 
WDS 21495+4716 HJ 1698 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21495+4716 HJ 1698 : MEASURES
 
 
No records found.

 
 
WDS 21495+4716 : VIRTUAL EYEPIECE
 
 

21495+4716 HJ 1698A mag 9.86 21495+4716 HJ 1698B sep 6.8 P.A. 331.30 mag 12.8 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 21495+4716 : ALADIN DSS IMAGE @ 21h 49m 30.29s +47° 16' 32.8"
 
 
 
 
WDS 21495+4716 HJ 1698 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21495+4716 HJ 1698 distance=0' 21492+4702 COU2317AB distance=15' 21492+4702 COU2317AC distance=15' 21511+4711 A 774 distance=17' 21515+4706 HJ 1701 distance=24' 21466+4713 HJ 1692 distance=31' 21526+4714 LI 7AB distance=32' 21526+4714 LI 7AC distance=32' 21473+4644 SRW 11AB distance=40' 21473+4644 SRW 11AC distance=40' 21535+4716 COU2320 distance=41' 21477+4759 COU2316AB distance=45' 21477+4759 GII 294Aa,Ab distance=45' 21451+4733 CON 42AB distance=48' 21451+4733 CON 42AC distance=48' 21470+4759 A 773 distance=50' 21488+4810 KPP1210 distance=54' 21547+4730 A 890 distance=55' 21543+4652 DAM 298 distance=55' 21441+4707 TDT3125 distance=56' 21514+4811 TDT3198 distance=58' 21545+4650 ES 2714 distance=59' 21552+4700 TDT3240 distance=61' 21549+4651 DAM 299 distance=62' 21500+4615 KPP 870 distance=62' 21555+4703 HJ 1705 distance=63' 21450+4633 NSN 748 distance=64' 21532+4619 SLN 43 distance=69' 21434+4634 BRT1151 distance=76' 21531+4826 COU2319AB distance=78' 21531+4826 GII 87AC distance=78' 21531+4826 COU2319AD distance=78' 21476+4832 TDT3155 distance=79' 21449+4824 SLN 42 distance=82' 21444+4611 HJ 1687 distance=84' 21444+4610 COU2315 distance=86' 21412+4733 GRF 18 distance=87' 21539+4839 COU2321 distance=94' 21423+4616 ES 1275BC distance=95' 21423+4616 ES 1275BD distance=95' 21491+4852 DAM 296 distance=96' 21432+4828 CBL 96 distance=96' 21509+4542 KPP4249 distance=96' 21556+4605 TDT3245 distance=96' 21423+4616 ES 1275AB distance=96' 21564+4829 TVB 14 distance=101' 21589+4748 ES 1176AB distance=101' 21497+4857 ES 9011 distance=101' 21580+4627 COU2236 distance=101' 21589+4748 ES 1176BC distance=101' 21575+4816 ES 682 distance=101' 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 21495+4716 HJ 1698 321 7.7
Show 21492+4702 COU2317 AB 111 0.3 15
Show 21492+4702 COU2317 AC 141 21.2 15
Show 21511+4711 A 774 14 0.6 17
Show 21515+4706 HJ 1701 210 14.5 24
Show 21466+4713 HJ 1692 231 9.0 31
Show 21526+4714 LI 7 AB 40 4.7 32
Show 21526+4714 LI 7 AC 207 6.0 32
Show 21473+4644 SRW 11 AB 28 28.9 40
Show 21473+4644 SRW 11 AC 341 26.3 40
Show 21535+4716 COU2320 190 1.1 41
Show 21477+4759 COU2316 AB 185 0.7 45
Show 21477+4759 GII 294 Aa,Ab 113 0.1 45
Show 21451+4733 CON 42 AB 120 0.7 48
Show 21451+4733 CON 42 AC 13 1.5 48
Show 21470+4759 A 773 201 3.3 50
Show 21488+4810 KPP1210 256 9.4 54
Show 21547+4730 A 890 236 1.5 55
Show 21543+4652 DAM 298 188 3.8 55
Show 21441+4707 TDT3125 220 0.9 56
Show 21514+4811 TDT3198 335 0.6 58
Show 21545+4650 ES 2714 24 2.7 59
Show 21552+4700 TDT3240 7 1.7 61
Show 21549+4651 DAM 299 309 6.8 62
Show 21500+4615 KPP 870 24 7.3 62
Show 21555+4703 HJ 1705 82 7.4 63
Show 21450+4633 NSN 748 255 10.0 64
Show 21532+4619 SLN 43 205 26.1 69
Show 21434+4634 BRT1151 278 4.1 76
Show 21531+4826 COU2319 AB 59 0.8 78
Show 21531+4826 GII 87 AC 31 6.2 78
Show 21531+4826 COU2319 AD 88 2.4 78
Show 21476+4832 TDT3155 40 0.8 79
Show 21449+4824 SLN 42 120 14.6 82
Show 21444+4611 HJ 1687 55 4.9 84
Show 21444+4610 COU2315 101 0.3 86
Show 21412+4733 GRF 18 203 146.6 87
Show 21539+4839 COU2321 255 0.7 94
Show 21423+4616 ES 1275 BC 337 4.3 95
Show 21423+4616 ES 1275 BD 286 6.1 95
Show 21491+4852 DAM 296 240 6.9 96
Show 21432+4828 CBL 96 117 46.6 96
Show 21509+4542 KPP4249 74 2.0 96
Show 21556+4605 TDT3245 263 0.5 96
Show 21423+4616 ES 1275 AB 1 72.6 96
Show 21564+4829 TVB 14 128 13.3 101
Show 21589+4748 ES 1176 AB 141 33.2 101
Show 21497+4857 ES 9011 216 5.5 101
Show 21580+4627 COU2236 194 0.3 101
Show 21589+4748 ES 1176 BC 270 6.8 101
Show 21575+4816 ES 682 134 6.2 101

 
 
WDS 21495+4716 : COMPONENTS
 
 
  A
B pa=331.3°
sep=6.79"
 
 
21495+4716 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214930.29+471632.8 Mag 9.86 PmRA 2.00
PmDE 8.0 Tycho2 3608-01745-1
Tycho2
Tycho2 3608-01745-1 Pflag RAmdeg 327.37623092 DEmdeg 47.27580092
PmRA -2.3 PmDE 3.8 E RAmdeg 21 E DEmdeg 22
E pmRA 1.8 E pmDE 1.7 EpRAm 1989.22 EpDEm 1989.01
Num 4 Q RAmdeg 4.2 Q DEmdeg 4.3 Q pmRA 4.2
Q pmDE 4.3 BTmag 11.255 E BTmag 0.062 VTmag 9.865
E VTmag 0.029 Prox 869 TYC T HIP
CCDM RAdeg 327.37625528 DEdeg 47.27578139 EpRA 1990 1.62
EpDE 1990 1.71 E RAdeg 23.3 E DEdeg 24.3 Posflg
Corr 0.1
 
 
21495+4716 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214929.97+471638.8 Mag 12.8 PmRA -11.00
PmDE 19.0 Calc delta mag 2.94 Calc coord yes