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Current system
11298-5552
HJ 4441
HD 99990


Nearby doubles
6' : 11293-5557
DAW 203AB

11' : 11285-5553
RSS 263

24' : 11302-5529
TDS7894

34' : 11299-5519
FIN 43

37' : 11265-5529
HJ 4434

42' : 11248-5552
KPP 246

43' : 11275-5515
TDS7866

46' : 11256-5622
R 170AB

49' : 11284-5505
TDS7876

51' : 11237-5552
KPP 244

55' : 11291-5647
TDS7884

55' : 11336-5508
FIN 45

56' : 11291-5648
LDS 353

58' : 11311-5457
TDS7904

60' : 11228-5545
RST1582

60' : 11368-5559
TDS7956

60' : 11288-5453
FIN 185

61' : 11286-5453
FIN 416

66' : 11270-5451
HJ 4436

67' : 11306-5659
TDS7897

68' : 11377-5545
TDS7965

70' : 11317-5445
FIN 44

71' : 11381-5547
TDS7970

71' : 11264-5658
RST2749

72' : 11263-5658
DAM 552AB

73' : 11236-5503
LDS 352



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.

11298-5552 HJ 4441 (HD 99990)

 
 
11h 29m 44.61s -55° 52' 39.4" P.A. 192.00 sep 12.2 mag 9.27,11.10 Sp G5
 
 
Coord 2000 11298-5552 Discov num HJ 4441 Comp Coord arcsec 2000 11 29 44.61 -55 52 39.4
Date first 1834 Date last 2018 Obs 8
Pa first 175 Pa last 191.5 P.A. Now (θ) 191.5°
Sep first 6.0 Sep last 12.2 Sep. Now (ρ) 12.2"
Mag pri 9.27 Mag sec 11.10 delta mag (ΔM) 1.83 Spectral class G5 (yellow)
Pri motion ra +005 Sec motion ra -020
Pri motion dec +017 Sec motion dec +001
Notes
rPM=1.482
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 99990 Constellation Centaurus Tycho2 8621-01301-1 Gaia DR2 5343331090282502528
HD 99990
 
 
WDS 11298-5552 HJ 4441 (HD 99990) : 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
11298-5552 HJ 4441 2000 5 190 11.7 9.27 11.10 G5 D 112944.61-555239.4
11298-5552 HJ 4441 2015 7 191 11.9 9.27 11.10 G5 112944.61-555239.4
11298-5552 HJ 4441 2018 8 192 12.2 9.27 11.10 G5 112944.61-555239.4

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

 
 
WDS 11298-5552 HJ 4441 (HD 99990) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11298-5552 HJ 4441 (HD 99990) : MEASURES
 
 
No records found.

 
 
WDS 11298-5552 (HD 99990) : VIRTUAL EYEPIECE
 
 

11298-5552 HJ 4441A mag 9.27 Sp G5 11298-5552 HJ 4441B sep 12.0 P.A. 186.50 mag 11.1 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 11298-5552 (HD 99990) : ALADIN DSS IMAGE @ 11h 29m 44.61s -55° 52' 39.4"
 
 
 
 
WDS 11298-5552 HJ 4441 (HD 99990) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11298-5552 HJ 4441 distance=0' 11293-5557 DAW 203AB distance=6' 11293-5557 R 172AC distance=6' 11285-5553 RSS 263 distance=11' 11302-5529 TDS7894 distance=24' 11299-5519 FIN 43 distance=34' 11265-5529 HJ 4434 distance=37' 11248-5552 KPP 246 distance=42' 11275-5515 TDS7866 distance=43' 11256-5622 R 170AB distance=46' 11256-5622 DAM 794AC distance=46' 11284-5505 TDS7876 distance=49' 11237-5552 KPP 244 distance=51' 11291-5647 TDS7884 distance=55' 11336-5508 FIN 45 distance=55' 11291-5648 LDS 353 distance=56' 11311-5457 TDS7904 distance=58' 11228-5545 RST1582 distance=60' 11368-5559 TDS7956 distance=60' 11288-5453 FIN 185 distance=60' 11286-5453 FIN 416 distance=61' 11270-5451 HJ 4436 distance=66' 11306-5659 TDS7897 distance=67' 11377-5545 TDS7965 distance=68' 11317-5445 FIN 44 distance=70' 11381-5547 TDS7970 distance=71' 11264-5658 RST2749 distance=71' 11263-5658 DAM 552AB distance=72' 11263-5658 DAM 552AC distance=72' 11263-5658 DAM 552AD distance=72' 11236-5503 LDS 352 distance=73' 11301-5440 HJ 4442 distance=73' 11212-5532 BRT2577 distance=76' 11226-5642 RST1581 distance=77' 11225-5501 DAW 202AB distance=80' 11225-5501 HJ 4431AC distance=80' 11206-5532 TDS7799 distance=80' 11201-5543 KPP1953 distance=82' 11311-5715 RST2753 distance=84' 11262-5434 RST1587 distance=84' 11202-5625 COO 123AB distance=87' 11202-5625 SHT 21AC distance=87' 11351-5438 RST1598 distance=88' 11189-5559 TDS7787 distance=92' 11190-5541 TDS7788 distance=92' 11188-5558 TDS7785 distance=92' 11285-5421 CPO 325 distance=93' 11193-5519 TDS7790 distance=95' 11401-5632 TDS7980 distance=95' 11331-5419 CKA 1 distance=98' 11209-5659 HEI 227 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 11298-5552 HJ 4441 192 12.2
Show 11293-5557 DAW 203 AB 36 12.5 6
Show 11293-5557 R 172 AC 111 23.6 6
Show 11285-5553 RSS 263 165 30.1 11
Show 11302-5529 TDS7894 186 1.1 24
Show 11299-5519 FIN 43 286 1.7 34
Show 11265-5529 HJ 4434 257 12.4 37
Show 11248-5552 KPP 246 309 3.5 42
Show 11275-5515 TDS7866 335 0.5 43
Show 11256-5622 R 170 AB 250 19.2 46
Show 11256-5622 DAM 794 AC 95 9.2 46
Show 11284-5505 TDS7876 75 2.4 49
Show 11237-5552 KPP 244 63 4.9 51
Show 11291-5647 TDS7884 189 8.4 55
Show 11336-5508 FIN 45 271 0.6 55
Show 11291-5648 LDS 353 292 54.1 56
Show 11311-5457 TDS7904 120 0.7 58
Show 11228-5545 RST1582 356 1.6 60
Show 11368-5559 TDS7956 234 0.7 60
Show 11288-5453 FIN 185 189 3.0 60
Show 11286-5453 FIN 416 230 0.5 61
Show 11270-5451 HJ 4436 357 14.2 66
Show 11306-5659 TDS7897 48 1.7 67
Show 11377-5545 TDS7965 17 2.3 68
Show 11317-5445 FIN 44 245 0.6 70
Show 11381-5547 TDS7970 247 0.6 71
Show 11264-5658 RST2749 56 1.5 71
Show 11263-5658 DAM 552 AB 49 4.7 72
Show 11263-5658 DAM 552 AC 178 5.6 72
Show 11263-5658 DAM 552 AD 180 11.2 72
Show 11236-5503 LDS 352 40 7.9 73
Show 11301-5440 HJ 4442 230 3.4 73
Show 11212-5532 BRT2577 142 4.2 76
Show 11226-5642 RST1581 145 1.6 77
Show 11225-5501 DAW 202 AB 12 7.5 80
Show 11225-5501 HJ 4431 AC 223 13.1 80
Show 11206-5532 TDS7799 2.3 80
Show 11201-5543 KPP1953 90 15.4 82
Show 11311-5715 RST2753 250 0.6 84
Show 11262-5434 RST1587 195 3.4 84
Show 11202-5625 COO 123 AB 354 3.6 87
Show 11202-5625 SHT 21 AC 108 12.6 87
Show 11351-5438 RST1598 284 2.3 88
Show 11189-5559 TDS7787 153 1.4 92
Show 11190-5541 TDS7788 18 1.7 92
Show 11188-5558 TDS7785 204 0.6 92
Show 11285-5421 CPO 325 42 7.3 93
Show 11193-5519 TDS7790 346 1.9 95
Show 11401-5632 TDS7980 36 1.4 95
Show 11331-5419 CKA 1 132 1.1 98
Show 11209-5659 HEI 227 110 0.1 99

 
 
WDS 11298-5552 : COMPONENTS
 
 
  A
B pa=186.5°
sep=12.03"
 
 
11298-5552 A
 
 
Componente originario normalizzato AB Name HD 99990 Coord arcsec 2000 112944.61-555239.4 Mag 9.27
Spectral class G5 (yellow) PmRA 5.00 PmDE 17.0 Tycho2 8621-01301-1
HD 99990
Tycho2
Tycho2 8621-01301-1 Pflag RAmdeg 172.43591777 DEmdeg -55.87762492
PmRA 2.7 PmDE 15.3 E RAmdeg 12 E DEmdeg 12
E pmRA 1.8 E pmDE 1.8 EpRAm 1990.11 EpDEm 1989.73
Num 5 Q RAmdeg 0.8 Q DEmdeg 0.5 Q pmRA 0.8
Q pmDE 0.4 BTmag 10.534 E BTmag 0.031 VTmag 9.267
E VTmag 0.017 Prox 625 TYC T HIP
CCDM RAdeg 172.43590694 DEdeg -55.87766083 EpRA 1990 1.71
EpDE 1990 1.60 E RAdeg 12.4 E DEdeg 12.9 Posflg
Corr -0.2
 
 
11298-5552 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 112944.45-555251.4 Mag 11.1 PmRA -20.00
PmDE 1.0 Calc delta mag 1.83 Calc coord yes