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Current system
21291+4455
BU 448
HD 204710


Nearby doubles
5' : 21292+4500
ES 99

15' : 21282+4445
KPP 7

18' : 21293+4512
ES 100AB

24' : 21313+4455
POP 137

25' : 21278+4515
ES 1335

26' : 21307+4435
ES 1336

29' : 21317+4508
AG 272

37' : 21318+4518
POP 150

38' : 21322+4438
ES 1338

44' : 21328+4437
ES 1339AB

44' : 21316+4420
ES 1337AB

45' : 21301+4539
POP 149

46' : 21331+4512
COU2308

53' : 21336+4438
ES 1340AB

55' : 21336+4522
UC 263AB

56' : 21341+4441
TDT3035

68' : 21237+4420
KPP3422

71' : 21353+4519
TDT3046

72' : 21262+4351
TDT2963

72' : 21282+4607
TDT2981

73' : 21264+4349
HO 159

78' : 21246+4355
BRT1149

81' : 21217+4434
GRV 455

84' : 21227+4408
COU2303

84' : 21225+4409
HJ 1640

85' : 21212+4449
ES 1334AB



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.

21291+4455 BU 448 (HD 204710)

 
 
21h 29m 06.33s +44° 55' 23.0" P.A. -1.00 sep 2.0 mag 6.95,11.00 Sp B8Ib dist. 478.47 pc (1560.77 l.y.)
 
 
Coord 2000 21291+4455 Discov num BU  448 Comp Coord arcsec 2000 21 29 06.33 +44 55 23.0
Date first 1876 Date last 1876 Obs 0
Pa first -1 Pa last -1 P.A. Now (θ) -1
Sep first 2.0 Sep last 2 Sep. Now (ρ) 2"
Mag pri 6.95 Mag sec 11.00 delta mag (ΔM) 4.05 Spectral class B8Ib (blue-white)
Pri motion ra -001 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 204710 Constellation Cygnus SAO 50925 HIP 106071
Tycho2 3194-01811-1 Gaia DR2 1971215170825436416 HD 204710 GC 30097
BD BD+44 3832 Distance 478.47 Distance ly 1560.77
 
 
WDS 21291+4455 BU 448 (HD 204710) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bu_1873a Ma - Burnham, S.W. (BU 1 - 81) 1873MNRAS..33..351B
Bu_1873a MNRAS 33, 351, 1873
Bu_1873b Ma - Burnham, S.W. (BU 82 - 106) 1873MNRAS..33..437B
Bu_1873b MNRAS 33, 437, 1873
Bu_1873c - Burnham, S.W. 1873MNRAS..33..567B
Bu_1873c MNRAS 33, 567, 1873
Bu_1873d Ma - Burnham, S.W. (BU 107 - 182) 1873MNRAS..34...59B
Bu_1873d MNRAS 34, 59, 1873
Bu_1874a Ma - Burnham, S.W. (BU 183 - 229) 1874MNRAS..34..382B
Bu_1874a MNRAS 34, 382, 1874
Bu_1874b Ma - Burnham, S.W. (BU 230 - 300) 1874MNRAS..35...31B
Bu_1874b MNRAS 35, 31, 1874
Bu_1874c - Burnham, S.W. 1874MNRAS..34..370B
Bu_1874c MNRAS 34, 370, 1874
Bu_1874d Ma - Burnham, S.W. 1874MNRAS..34..393B
Bu_1874d MNRAS 34, 393, 1874
Bu_1874e Ma - Burnham, S.W. 1874MNRAS..35...28B
Bu_1874e MNRAS 35, 28, 1874
Bu_1875 Ma - Burnham, S.W. (BU 301 - 390) 1875AN.....86..337B
Bu_1875 AN 86, 337, 1875
Bu_1876 Ma - Burnham, S.W. (BU 391 - 436) 1876AN.....88..225B
Bu_1876 AN 88, 225, 1876
Bu_1876b - Burnham, S.W. 1876MNRAS..36...99B
Bu_1876b MNRAS 36, 99, 1876
Bu_1876c - Burnham, S.W. 1876MNRAS..36..331B
Bu_1876c MNRAS 36, 331, 1876 (no new data)
Bu_1877 Ma - Burnham, S.W. (BU 453 - 482) 1877MNRAS..38...78B
Bu_1877 MNRAS 38, 78, 1877
Bu_1878a Ma - Burnham, S.W. 1878MNRAS..38..408B
Bu_1878a MNRAS 38, 408, 1878
Bu_1878b - Burnham, S.W. 1878MNRAS..38..476B
Bu_1878b MNRAS 38, 476, 1878
Bu_1878c - Burnham, S.W. 1878MNRAS..38..478B
Bu_1878c MNRAS 38, 478, 1878
Bu_1878d Ma j Burnham, S.W. 1878AN.....92..235B
Bu_1878d AN 92, 235, 1878
Bu_1879 Ma j Burnham, S.W. 1879MmRAS..44..141B
Bu_1879 MemRAS 44, 141, 1879
Bu_1879B Ma - Burnham, S.W. 1879Obs.....3...20G
Bu_1879B cited by Gledhill (Obs 3, 20, 1879)
Bu_1879C Ma - Burnham, S.W. 1879Obs.....3..142G
Bu_1879C cited by Gledhill (Obs 3, 142, 1879)
Bu_1879d Ma - Burnham, S.W. 1879Obs.....3...92B
Bu_1879d Obs 3, 92, 1879
Bu_1879e Ma - Burnham, S.W. 1879MNRAS..40...99B
Bu_1879e MNRAS 40, 99, 1879
Bu_1880A Ma - Burnham, S.W. 1880Obs.....3..508G
Bu_1880A cited by Gledhill (Obs 3, 508, 1880)
Bu_1880C Ma - Burnham, S.W. 1880Obs.....3..314G
Bu_1880C cited by Gledhill (Obs 3, 314, 1880)
Bu_1880D Ma - Burnham, S.W. 1880Obs.....3..352G
Bu_1880D cited by Gledhill (Obs 3, 352, 1880)
Bu_1880e Ma - Burnham, S.W. 1880Obs.....3..408B
Bu_1880e Obs 3, 408, 1880
Bu_1880f Ma - Burnham, S.W. 1880MNRAS..40..497B
Bu_1880f MNRAS 40, 497, 1880
Bu_1880g Ma - Burnham, S.W. 1880MNRAS..41...33B
Bu_1880g MNRAS 41, 33, 1880
Bu_1881 Ma j Burnham, S.W. 1881Obs.....4...19G
Bu_1881 cited by Gledhill (Obs 4, 19, 1881)
Bu_1882a Ma - Burnham, S.W. (BU 776 - 863) 1882PWasO...1...91B
Bu_1882a Pub. Washburn Obs. 1, 91, 1882
Bu_1882b Ma - Burnham, S.W. 1882PWasO...1..113B
Bu_1882b Pub. Washburn Obs. 1, 113, 1882
Bu_1883 Ma j Burnham, S.W. (BU 864 - 1025) 1883MmRAS..47..167B
Bu_1883 MemRAS 47, 167, 1883
Bu_1883b Ma - Burnham, S.W. 1883MNRAS..43..318B
Bu_1883b MNRAS 43, 318, 1883
Bu_1884 Ma j Burnham, S.W. 1884MNRAS..44..365H
Bu_1884 MNRAS 44, 365, 1884
Bu_1884b Ma - Burnham, S.W. 1884AN....110..133B
Bu_1884b AN 110, 133, 1884
Bu_1884C Ma - Burnham, S.W. 1884AReg...22..216S
Bu_1884C cited by Sadler (Astr. Register 22, 216, 1884)
Bu_1887 Ma - Burnham, S.W. (BU 734 - 775) 1887PLicO...1...24B
Bu_1887 Pub. Lick Obs. 1, 24,45, 1887
Bu_1889a Ma - Burnham, S.W. 1889AN....122..159B
Bu_1889a AN 122, 159, 1889 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1889b Ma - Burnham, S.W. (BU 1026 - 1038) 1889AN....123....1B
Bu_1889b AN 123, 1, 1889 (measures also in Bu_1894a) 1894PLicO...2..185B
Bu_1889c Ma - Burnham, S.W. 1889AN....123...75B
Bu_1889c AN 123, 75, 1889 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1889d Ma - Burnham, S.W. 1889PASP....1...36B
Bu_1889d PASP 1, 36, 1889 (measures also in Bu_1894) 1894PLicO...2....3B
Bu_1889e Ma j Burnham, S.W. 1889AN....121...63B
Bu_1889e AN 121, 63, 1889 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1889f Ma j Bunham, S.W. 1889MNRAS..49..418B
Bu_1889f MNRAS 49, 418, 1889
Bu_1890a Ma - Burnham, S.W. (BU 1093 - 1154) 1889AN....124...49B
Bu_1890a AN 124, 49, 1890 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1890b Ma - Burnham, S.W. 1890AN....125...41B
Bu_1890b AN 125, 41, 1890 (measures also in Bu_1894) 1894PLicO...2....3B
Bu_1890c Ma - Burnham, S.W. 1890PASP....2..138B
Bu_1890c PASP 2, 138, 1890 (measures also in Bu_1894) 1894PLicO...2....3B
Bu_1891a orb - Burnham, S.W. 1891SidM...10..273B
Bu_1891a Sidereal Messenger 10, 273, 1891
Bu_1891b orb - Burnham, S.W. 1891Obs....14..263B
Bu_1891b Observatory 14, 263, 1891
Bu_1891c Ma j Burnham, S.W. 1891AN....127..289B
Bu_1891c AN 127, 289, 1891
Bu_1892 Ma - Burnham, S.W. (BU 1225 - 1266) 1892AN....130..257B
Bu_1892 AN 130, 257, 1892 (measures also in Bu_1894e) 1894PLicO...2..221B
Bu_1892b Ma - Burnham, S.W. 1892AN....130...77B
Bu_1892b AN 130, 77, 1892
Bu_1893a Ma - Burnham, S.W. 1893AN....131..329B
Bu_1893a AN 131, 329, 1893 (most measures also in Bu_1894) 1894PLicO...2.....B
Bu_1893b orb - Burnham, S.W. 1893MNRAS..53..478B
Bu_1893b MNRAS 53, 478, 1893
Bu_1893c orb - Burnham, S.W. 1893MNRAS..54..119B
Bu_1893c MNRAS 54, 119, 1893
Bu_1893d orb - Burnham, S.W. 1893AstAp..12..494B
Bu_1893d AstAp 12, 494, 1893
Bu_1893e orb - Burnham, S.W. 1893AstAp..12..585B
Bu_1893e AstAp 12, 585, 1893
Bu_1893f Ma - Burnham, S.W. (BU 1267 - 1274) 1893MNRAS..53..273B
Bu_1893f MNRAS 53, 273, 1893 (most measures also in Bu_1893a) 1893AN....131..329B
Bu_1893g orb - Burnham, S.W. 1893MNRAS..53..482B
Bu_1893g MNRAS 53, 482, 1893
Bu_1894 Ma j Burnham, S.W. 1894PLicO...2....3B
Bu_1894 Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a) 1893AN....131..329B
Bu_1894a Ma j Burnham, S.W. (BU 1026 - 1038) 1894PLicO...2..185B
Bu_1894a Pub. Lick Obs. 2, 185, 1894
Bu_1894b Ma j Burnham, S.W. (BU 1039 - 1092) 1894PLicO...2..188B
Bu_1894b Pub. Lick Obs. 2, 188, 1894
Bu_1894c Ma - Burnham, S.W. (BU 1093 - 1154) 1894PLicO...2..197B
Bu_1894c Pub. Lick Obs. 2, 197, 1894
Bu_1894d Ma - Burnham, S.W. (BU 1155 - 1224) 1894PLicO...2..206B
Bu_1894d Pub. Lick Obs. 2, 206, 1894
Bu_1894e Ma - Burnham, S.W. (BU 1225 - 1266) 1894PLicO...2..221B
Bu_1894e Pub. Lick Obs. 2, 221, 1894
Bu_1894f Ma - Burnham, S.W. (BU 1267 - 1274) 1894PLicO...2..229B
Bu_1894f Pub. Lick Obs. 2, 229, 1894 (all measures also in Bu_1893f) 1893MNRAS..53..273B
Bu_1894g Ma - Burnham, S.W. 1894PLicO...2..159B
Bu_1894g Pub. Lick Obs. 2, 159, 1894
Bu_1898 orb - Burnham, S.W. 1898MNRAS..59...59B
Bu_1898 MNRAS 58, 59, 1898
Bu_1900 Ma - Burnham, S.W. 1900PYerO...1....1B
Bu_1900 Pub. Yerkes Obs. 1, 1, 1900
Bu_1902A Ma j Burnham, S.W. 1902AN....158..241E
Bu_1902A cited by Espin (AN 158, 241, 1902)
Bu_1903 Ma - Burnham, S.W. 1903PYerO...2....1B
Bu_1903 Pub. Yerkes Obs. 2, 1, 1903
Bu_1906 Ma j Burnham, S.W. 1906QB821.B972.....
Bu_1906 +M Burnham Double Star Cat., 1906
Bu_1906B Ma - Burnham, S.W. 1906MmRAS..56....1L
Bu_1906B +orb cited by Lewis (MemRAS 56, 1, 1906)
Bu_1907 Ma - Burnham, S.W. 1907AN....176..129B
Bu_1907 AN 176, 129, 1907 (most data in Bu_1913) 1913QB811.B8.......
Bu_1908 Ma - Burnham, S.W. 1908MNRAS..68..517B
Bu_1908 MNRAS 68, 517, 1908
Bu_1908A Ma - Burnham, S.W. 1908MNRAS..68..465B
Bu_1908A cited by Barnard (MNRAS 68, 465, 1908)
Bu_1909 Ma - Burnham, S.W. 1909AN....180...65B
Bu_1909 AN 180, 65, 1909 (most data in Bu_1913) 1913QB811.B8.......
Bu_1909b Ma j Burnham, S.W. 1909AN....182..133B
Bu_1909b AN 182, 133, 1909
Bu_1910 Ma - Burnham, S.W. ...................
Bu_1910 Journal Astronomique 1, no. 11, 81, 1910
Bu_1910b Ma - Burnham, S.W. 1910AN....185..145B
Bu_1910b AN 185, 145, 1910 (most data in Bu_1913) 1913QB811.B8.......
Bu_1911 - Burnham, S.W. 1911MNRAS..72..156J
Bu_1911 MNRAS 72, 156, 1911
Bu_1911b Ma j Burnham, S.W. 1911AN....189..385B
Bu_1911b AN 189, 385, 1911
Bu_1913 Ma j Burnham, S.W. 1913QB811.B8.......
Bu_1913 +Pa Carnegie Inst. Wash. #168, 1913
Bu_1913 +T
Bu_1918 Ma j Burnham, S.W. 1918AJ.....31..141B
Bu_1918 AJ 31, 141, 1918
Bu_1923A Ma - Burnham, S.W. 1923MNRAS..83..154E
Bu_1923A cited by Espin (MNRAS 83, 154, 1923)
Bu_1927A Ma - Burnham, S.W. 1927sdsc.book......
Bu_1927A cited in SDS (Southern Double Star Cat.), 1927
Bu_1932A Ma - Burnham, S.W. 1932QB821.A43......
Bu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Bu_1963A Ma - Burnham, S.W. 1963icvd.book.....J
Bu_1963A cited in IDS (Lick Index Cat.), 1963
Bu_2002A Ma - Burnham, S.W. 2002yCat.1275....0D
Bu_2002A cited in CCDM
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21291+4455 BU 448 1876 0 -1 2.0 6.95 11.00 B8Ib 212906.33+445523.0

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

 
 
WDS 21291+4455 BU 448 (HD 204710) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21291+4455 BU 448 (HD 204710) : MEASURES
 
 
No records found.

 
 
WDS 21291+4455 (HD 204710) : VIRTUAL EYEPIECE
 
 

21291+4455 BU 448A mag 6.95 Sp B8Ib 21291+4455 BU 448B mag 11 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 21291+4455 (HD 204710) : ALADIN DSS IMAGE @ 21h 29m 06.33s +44° 55' 23.0"
 
 
 
 
WDS 21291+4455 BU 448 (HD 204710) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21291+4455 BU 448 distance=0' 21292+4500 ES 99 distance=5' 21282+4445 KPP 7 distance=15' 21293+4512 ES 100AB distance=18' 21293+4512 ES 100AC distance=18' 21313+4455 POP 137 distance=24' 21278+4515 ES 1335 distance=25' 21307+4435 ES 1336 distance=26' 21317+4508 AG 272 distance=29' 21318+4518 POP 150 distance=37' 21322+4438 ES 1338 distance=38' 21325+4436 POP 136BC distance=42' 21325+4436 POP 136A,BC distance=42' 21328+4437 ES 1339AB distance=44' 21328+4437 ES 1339AC distance=44' 21316+4420 ES 1337AB distance=44' 21316+4420 ES 1337AC distance=44' 21301+4539 POP 149 distance=45' 21331+4512 COU2308 distance=46' 21336+4438 ES 1340AB distance=53' 21336+4438 ES 1340AC distance=53' 21336+4522 UC 263AB distance=55' 21341+4441 TDT3035 distance=56' 21237+4420 KPP3422 distance=68' 21353+4519 TDT3046 distance=71' 21262+4351 TDT2963 distance=72' 21282+4607 TDT2981 distance=72' 21264+4349 HO 159 distance=73' 21246+4355 BRT1149 distance=78' 21217+4434 GRV 455 distance=81' 21227+4408 COU2303 distance=84' 21225+4409 HJ 1640 distance=84' 21212+4449 ES 1334AB distance=85' 21345+4559 HJ 1660 distance=85' 21305+4620 A 768 distance=86' 21370+4520 COU2309 distance=88' 21207+4455 GRV 451 distance=89' 21220+4408 HJ 1639 distance=90' 21296+4626 HDS3059 distance=91' 21249+4336 BRT1150 distance=91' 21372+4527 COU2310 distance=92' 21240+4611 SKF1391 distance=93' 21259+4622 ES 1170AB distance=94' 21259+4622 ES 1170AC distance=94' 21292+4629 ES 1274CD distance=94' 21202+4509 LDS2510 distance=95' 21205+4528 KRV 9 distance=97' 21292+4629 ES 1274AB distance=97' 21223+4353 TDT2930 distance=97' 21371+4409 POP 139 distance=98' 21353+4612 TOR 28 distance=99' 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 21291+4455 BU 448 -1 2.0
Show 21292+4500 ES 99 203 4.5 5
Show 21282+4445 KPP 7 269 4.0 15
Show 21293+4512 ES 100 AB 157 4.4 18
Show 21293+4512 ES 100 AC 333 29.9 18
Show 21313+4455 POP 137 103 1.6 24
Show 21278+4515 ES 1335 287 8.5 25
Show 21307+4435 ES 1336 346 4.8 26
Show 21317+4508 AG 272 184 4.2 29
Show 21318+4518 POP 150 219 4.4 37
Show 21322+4438 ES 1338 42 6.5 38
Show 21325+4436 POP 136 BC 89 2.0 42
Show 21325+4436 POP 136 A,BC 249 23.6 42
Show 21328+4437 ES 1339 AB 135 5.1 44
Show 21328+4437 ES 1339 AC 247 23.1 44
Show 21316+4420 ES 1337 AB 264 6.2 44
Show 21316+4420 ES 1337 AC 152 22.9 44
Show 21301+4539 POP 149 296 3.9 45
Show 21331+4512 COU2308 177 0.1 46
Show 21336+4438 ES 1340 AB 222 7.6 53
Show 21336+4438 ES 1340 AC 165 5.9 53
Show 21336+4522 UC 263 AB 64 66.2 55
Show 21341+4441 TDT3035 195 2.8 56
Show 21237+4420 KPP3422 231 17.2 68
Show 21353+4519 TDT3046 134 0.5 71
Show 21262+4351 TDT2963 267 0.5 72
Show 21282+4607 TDT2981 101 2.0 72
Show 21264+4349 HO 159 183 5.5 73
Show 21246+4355 BRT1149 136 3.2 78
Show 21217+4434 GRV 455 132 28.9 81
Show 21227+4408 COU2303 269 1.9 84
Show 21225+4409 HJ 1640 35 7.4 84
Show 21212+4449 ES 1334 AB 307 5.3 85
Show 21345+4559 HJ 1660 261 6.5 85
Show 21305+4620 A 768 335 0.7 86
Show 21370+4520 COU2309 53 0.7 88
Show 21207+4455 GRV 451 184 52.1 89
Show 21220+4408 HJ 1639 102 10.7 90
Show 21296+4626 HDS3059 142 0.7 91
Show 21249+4336 BRT1150 60 2.9 91
Show 21372+4527 COU2310 10 0.5 92
Show 21240+4611 SKF1391 154 30.5 93
Show 21259+4622 ES 1170 AB 345 5.3 94
Show 21259+4622 ES 1170 AC 343 10.5 94
Show 21292+4629 ES 1274 CD 46 6.0 94
Show 21202+4509 LDS2510 345 20.4 95
Show 21205+4528 KRV 9 123 21.2 97
Show 21292+4629 ES 1274 AB 242 3.2 97
Show 21223+4353 TDT2930 356 1.8 97
Show 21371+4409 POP 139 183 1.0 98
Show 21353+4612 TOR 28 324 13.1 99

 
 
WDS 21291+4455 : COMPONENTS
 
 
  A
B pa=0.0°
sep=0.00"
 
 
21291+4455 A
 
 
Componente originario normalizzato AB Name HD 204710 Coord arcsec 2000 212906.33+445523.0 Mag 6.95
Spectral class B8Ib (blue-white) PmRA -1.00 PmDE -3.0 SAO 50925
HIP 106071 Tycho2 3194-01811-1 HD 204710 GC 30097
BD BD+44 3832
Tycho2
Tycho2 3194-01811-1 Pflag RAmdeg 322.27639591 DEmdeg 44.92306743
PmRA -1.9 PmDE -7.6 E RAmdeg 4 E DEmdeg 4
E pmRA 0.8 E pmDE 0.9 EpRAm 1991.21 EpDEm 1991.43
Num 13 Q RAmdeg 0.8 Q DEmdeg 1.5 Q pmRA 0.9
Q pmDE 1.6 BTmag 7.203 E BTmag 0.015 VTmag 6.968
E VTmag 0.010 Prox 999 TYC T HIP 106071
CCDM RAdeg 322.27640222 DEdeg 44.92308500 EpRA 1990 1.63
EpDE 1990 1.76 E RAdeg 3.8 E DEdeg 3.9 Posflg
Corr 0.1
SAO
SAO 50925 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 0 Vmag 6.9 SpType B8
Double code Source 70 CatNum 30097 DM BD+44 3832
DMcomp BDsup HD 204710 M HD 0
GC 30097 RA1950rad 5.61657067 DE1950rad 0.78022619 PmRA2000 0.0005
PmDE2000 -0.004
Hipparcos
Catalog H HIP 106071 Proxy RAhms 21 29 06.34
DEdms +44 55 23.1 Vmag 6.94 VarFlag 1 R Vmag G
RAdeg 322.276 DEdeg 44.9231 AstroRef Plx 2.06
CCDM 21291+4455 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 204710 BD BD+44 3832
CD CP Dm number +44 3832 VIred 0.28
SpType B8Ib R SpType Coord arcsec 2000 212906.34+445523.1
Hipparcos 2
HIP 106071 Sn 5 So 0 Nc 1
RArad 5.6247843587 DErad 0.7840557552 Plx 2.09 PmRA -0.82
PmDE -3.23 E RArad 0.35 E DErad 0.33 E Plx 0.44
E pmRA 0.5 E pmDE 0.42 Hpmag 7.0036 E Hpmag 0.0019
SHp 0.015 VA 2 BV 0.25 E BV 0.003
VI 0.28
CCDM
Ccdm 21291+4455 RComp Comp A Note1
Note2 Discov num DRAs 0.36 DDEs 23.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.9 Sp B9 PmNote *
PmRA 2 PmDE 1 Dm number +44 3832 Cat1 BD
Name2 +44 1934 Cat2 AGK2/3 HD 204710 M HD
ADS BDS B11017 M ADS BDS N IDS IDS 21253N4429A
HIC 106071
 
 
21291+4455 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212906.33+445523.0 Mag 11 Calc delta mag 4.05
Calc coord yes
CCDM
Ccdm 21291+4455 RComp Comp B Note1
Note2 Discov num BU 448 DRAs DDEs
R dRAs Year 1876 Theta Rho 2.0
Obs 1 Vmag 10.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B11017 M ADS BDS N N IDS IDS 21253N4429B
HIC 106071