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Current system
20122+3603
SEI 994


Nearby doubles
2' : 20121+3603
SEI 990

4' : 20122+3600
SEI 991

7' : 20117+3600
SEI 978

9' : 20115+3604
SEI 972

10' : 20119+3612
BLL 46AB

11' : 20131+3602
SEI1014

12' : 20125+3552
SEI1001

12' : 20126+3614
SEI1003

13' : 20120+3614
TOB 176

13' : 20119+3551
SEI 983AB

13' : 20119+3550
SEI 985AB

15' : 20124+3549
TOB 177

15' : 20114+3552
HJ 1490

15' : 20110+3559
SEI 961

16' : 20122+3548
SEI 992

16' : 20113+3551
BKO 100

16' : 20132+3611
NSN 731

17' : 20126+3618
SEI1004AB

17' : 20135+3607
SEI1019

17' : 20113+3550
BU 430AB

18' : 20124+3545
BKO 104AB

19' : 20122+3621
SEI 996AB

19' : 20109+3612
SEI 959

20' : 20136+3553
SEI1021AB

20' : 20116+3621
SEI 976

20' : 20115+3545
TDT2066



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

20122+3603 SEI 994

 
 
20h 12m 10.46s +36° 02' 38.7" P.A. 250.00 sep 27.1 mag 10.72,11.44 Sp A0
 
 
Coord 2000 20122+3603 Discov num SEI 994 Comp Coord arcsec 2000 20 12 10.46 +36 02 38.7
Date first 1896 Date last 2015 Obs 15
Pa first 251 Pa last 250 P.A. Now (θ) 250°
Sep first 26.9 Sep last 27.084 Sep. Now (ρ) 27.084"
Mag pri 10.72 Mag sec 11.44 delta mag (ΔM) 0.72 Spectral class A0 (white)
Pri motion ra +001 Sec motion ra +000
Pri motion dec -002 Sec motion dec -003
Notes
rPM=0.471
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2683-03074-1 Gaia DR2 2058963032000097536
 
 
WDS 20122+3603 SEI 994 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20122+3603 SEI 994 2002 8 250 27.2 10.72 11.44 D 201210.46+360238.7
20122+3603 SEI 994 2010 10 250 27.0 10.72 11.44 A0 201210.46+360238.7
20122+3603 SEI 994 2015 11 250 27.1 10.72 11.44 A0 201210.46+360238.7

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

 
 
WDS 20122+3603 SEI 994 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20122+3603 SEI 994 : MEASURES
 
 
No records found.

 
 
WDS 20122+3603 : VIRTUAL EYEPIECE
 
 

20122+3603 SEI 994A mag 10.72 Sp A0 20122+3603 SEI 994B sep 22.6 P.A. 245.80 mag 11.44 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 20122+3603 : ALADIN DSS IMAGE @ 20h 12m 10.46s +36° 02' 38.7"
 
 
 
 
WDS 20122+3603 SEI 994 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20122+3603 SEI 994 distance=0' 20121+3603 SEI 990 distance=2' 20122+3600 SEI 991 distance=4' 20117+3600 SEI 978 distance=7' 20115+3604 SEI 972 distance=9' 20119+3612 BLL 46AB distance=10' 20119+3612 BKO 101AC distance=10' 20131+3602 SEI1014 distance=11' 20125+3552 SEI1001 distance=12' 20126+3614 SEI1003 distance=12' 20120+3614 TOB 176 distance=13' 20119+3551 SEI 983AB distance=13' 20119+3551 SEI 983AC distance=13' 20119+3551 BKO 102AD distance=13' 20119+3550 SEI 985AB distance=13' 20119+3550 BKO 103AC distance=13' 20124+3549 TOB 177 distance=15' 20114+3552 HJ 1490 distance=15' 20110+3559 SEI 961 distance=15' 20122+3548 SEI 992 distance=16' 20113+3551 BKO 100 distance=16' 20132+3611 NSN 731 distance=16' 20126+3618 SEI1004AB distance=17' 20126+3618 TOB 178AC distance=17' 20135+3607 SEI1019 distance=17' 20113+3550 BU 430AB distance=17' 20113+3550 BU 430AC distance=17' 20113+3550 HJ 1489AD distance=17' 20124+3545 BKO 104AB distance=18' 20124+3545 BKO 104AC distance=18' 20122+3621 SEI 996AB distance=19' 20122+3621 STJ 71AC distance=19' 20109+3612 SEI 959 distance=19' 20136+3553 SEI1021BC distance=20' 20136+3553 SEI1021AB distance=20' 20136+3553 SEI1021AD distance=20' 20136+3553 SEI1021AC distance=20' 20116+3621 SEI 976 distance=20' 20115+3545 TDT2066 distance=20' 20135+3551 SEI1018 distance=21' 20108+3552 SEI 954 distance=21' 20111+3619 RAO 428 distance=21' 20137+3551 TDT2105 distance=23' 20123+3540 FYM 582 distance=23' 20105+3614 SEI 947 distance=24' 20118+3540 SEI 979 distance=24' 20105+3550 SEI 944 distance=25' 20115+3539 SEI 968 distance=26' 20101+3602 SEI 938 distance=26' 20111+3626 ALI 414 distance=27' 20141+3617 SEI1031 distance=28' 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 20122+3603 SEI 994 250 27.1
Show 20121+3603 SEI 990 296 26.7 2
Show 20122+3600 SEI 991 296 20.1 4
Show 20117+3600 SEI 978 151 7.6 7
Show 20115+3604 SEI 972 147 23.9 9
Show 20119+3612 BLL 46 AB 109 53.2 10
Show 20119+3612 BKO 101 AC 242 41.1 10
Show 20131+3602 SEI1014 351 27.7 11
Show 20125+3552 SEI1001 188 29.2 12
Show 20126+3614 SEI1003 282 23.4 12
Show 20120+3614 TOB 176 197 18.8 13
Show 20119+3551 SEI 983 AB 89 3.5 13
Show 20119+3551 SEI 983 AC 243 8.1 13
Show 20119+3551 BKO 102 AD 277 14.7 13
Show 20119+3550 SEI 985 AB 17 16.6 13
Show 20119+3550 BKO 103 AC 92 8.1 13
Show 20124+3549 TOB 177 221 20.1 15
Show 20114+3552 HJ 1490 355 8.6 15
Show 20110+3559 SEI 961 20 13.9 15
Show 20122+3548 SEI 992 77 26.4 16
Show 20113+3551 BKO 100 91 6.3 16
Show 20132+3611 NSN 731 324 25.3 16
Show 20126+3618 SEI1004 AB 108 25.8 17
Show 20126+3618 TOB 178 AC 288 27.8 17
Show 20135+3607 SEI1019 115 23.9 17
Show 20113+3550 BU 430 AB 23 1.2 17
Show 20113+3550 BU 430 AC 173 7.2 17
Show 20113+3550 HJ 1489 AD 51 17.1 17
Show 20124+3545 BKO 104 AB 72 9.4 18
Show 20124+3545 BKO 104 AC 285 9.3 18
Show 20122+3621 SEI 996 AB 29.5 19
Show 20122+3621 STJ 71 AC 105 1.1 19
Show 20109+3612 SEI 959 71 21.6 19
Show 20136+3553 SEI1021 BC 52 3.3 20
Show 20136+3553 SEI1021 AB 248 13.4 20
Show 20136+3553 SEI1021 AD 121 6.9 20
Show 20136+3553 SEI1021 AC 253 10.3 20
Show 20116+3621 SEI 976 3 8.2 20
Show 20115+3545 TDT2066 129 1.0 20
Show 20135+3551 SEI1018 170 22.3 21
Show 20108+3552 SEI 954 314 4.8 21
Show 20111+3619 RAO 428 292 1.0 21
Show 20137+3551 TDT2105 168 0.6 23
Show 20123+3540 FYM 582 267 4.9 23
Show 20105+3614 SEI 947 292 15.0 24
Show 20118+3540 SEI 979 350 6.3 24
Show 20105+3550 SEI 944 90 17.2 25
Show 20115+3539 SEI 968 127 5.6 26
Show 20101+3602 SEI 938 22 5.4 26
Show 20111+3626 ALI 414 215 11.6 27
Show 20141+3617 SEI1031 61 18.6 28

 
 
WDS 20122+3603 : COMPONENTS
 
 
  A
B pa=245.8°
sep=22.57"
 
 
20122+3603 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 201210.46+360238.7 Mag 10.72 Spectral class A0 (white)
PmRA 1.00 PmDE -2.0 Tycho2 2683-03074-1
Tycho2
Tycho2 2683-03074-1 Pflag RAmdeg 303.04359511 DEmdeg 36.04407901
PmRA 0.5 PmDE 1.9 E RAmdeg 27 E DEmdeg 23
E pmRA 1.6 E pmDE 1.6 EpRAm 1986.86 EpDEm 1987.41
Num 6 Q RAmdeg 1.4 Q DEmdeg 0.3 Q pmRA 1.3
Q pmDE 0.3 BTmag 10.812 E BTmag 0.040 VTmag 10.725
E VTmag 0.052 Prox 273 TYC T HIP
CCDM RAdeg 303.04360222 DEdeg 36.04407417 EpRA 1990 1.56
EpDE 1990 1.67 E RAdeg 29.5 E DEdeg 26.9 Posflg
Corr 0.0
CCDM
Ccdm 20122+3603 RComp Comp A Note1
Note2 Discov num DRAs -1.51 DDEs -21.6
R dRAs 65 Year Theta Rho
Obs 2 Vmag 9.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20084N3545A
HIC
 
 
20122+3603 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201208.76+360229.4 Mag 11.44 PmRA 0.00
PmDE -3.0 Tycho2 2683-00962-1 Calc delta mag 0.72 Calc coord yes
Tycho2
Tycho2 2683-00962-1 Pflag RAmdeg 303.03481306 DEmdeg 36.04140107
PmRA -1.1 PmDE -5.5 E RAmdeg 54 E DEmdeg 49
E pmRA 1.8 E pmDE 1.8 EpRAm 1979.27 EpDEm 1981.25
Num 5 Q RAmdeg 0.8 Q DEmdeg 0.7 Q pmRA 0.8
Q pmDE 0.7 BTmag 11.633 E BTmag 0.072 VTmag 11.439
E VTmag 0.097 Prox 273 TYC T HIP
CCDM RAdeg 303.03481417 DEdeg 36.04141278 EpRA 1990 1.55
EpDE 1990 1.65 E RAdeg 58.6 E DEdeg 53.3 Posflg
Corr 0.0
CCDM
Ccdm 20122+3603 RComp Comp B Note1
Note2 Discov num SEI 994 DRAs -3.62 DDEs -30.7
R dRAs 65 Year 1896 Theta 251 Rho 27.0
Obs 1 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20084N3545B
HIC