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Doubles in session


Current system
07520-2747
HJ 2421 AB


Nearby doubles
4' : 07522-2746
TDS5293

6' : 07524-2745
BRT2925

8' : 07523-2754
RST1369

13' : 07523-2800
KPP3730

24' : 07509-2729
TDS5268

30' : 07536-2728
I 782

31' : 07521-2818
B 747

32' : 07506-2813
TDS5262

33' : 07532-2817
TDS5304

35' : 07497-2734
TDS5241

36' : 07542-2729
TDS5320

37' : 07498-2810
TDS5246

38' : 07501-2815
HDS1113

39' : 07516-2826
TDS5282

39' : 07533-2714
TDS5305

41' : 07497-2815
HJ 4007

44' : 07545-2718
TDS5328

44' : 07553-2741
TDS5340

45' : 07544-2820
RST 290

46' : 07500-2824
TDS5248

46' : 07544-2715
B 749

48' : 07535-2832
RST 286

49' : 07488-2725
B 744

50' : 07555-2728
B 2641

51' : 07482-2756
TDS5216

52' : 07531-2700
BRT2927



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.

07520-2747 HJ 2421 AB

 
 
07h 52m 01.80s -27° 47' 51.7" P.A. 84.00 sep 8.6 mag 10.42,11.60
 
 
Coord 2000 07520-2747 Discov num HJ 2421 Comp AB Coord arcsec 2000 07 52 01.80 -27 47 51.7
Date first 1831 Date last 2015 Obs 5
Pa first 42 Pa last 83.8 P.A. Now (θ) 83.8°
Sep first 8.0 Sep last 8.57 Sep. Now (ρ) 8.57"
Mag pri 10.42 Mag sec 11.60 delta mag (ΔM) 1.18 Spectral class
Pri motion ra -002 Sec motion ra +021
Pri motion dec +033 Sec motion dec +004
Notes
rPM=1.12
This double is not physical.
 
 
07520-2747 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 07 52 02 -27 47 52 HJ 2421 AB 2015 5 84 8.6 10.42 11.60 1.18 <===
Show 07 52 02 -27 47 52 DAW 9004 AC 2015 3 15 4.8 10.42 14.00 3.58
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Puppis Tycho2 6561-00462-1 Gaia DR2 5600759541525855488
 
 
WDS 07520-2747 HJ 2421 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Daw1918a Ma - Dawson, B.H. .
Daw1918a Pub. La Plata Obs. 4, Pt.1, 1918
Daw1918b Ma - Dawson, B.H. (measure by Chaves, A.J.) .
Daw1918b Pub. La Plata Obs. 4, Pt.1, 1918
Daw1919 orb - Dawson, B.H. 1919AJ.....32..109D
Daw1919 AJ 32, 109, 1919
Daw1920 orb - Dawson, B.H. 1920AJ.....32..141D
Daw1920 AJ 32, 141, 1920
Daw1920b orb - Dawson, B.H. 1920AJ.....32..161D
Daw1920b AJ 32, 161, 1920
Daw1922 Ma - Dawson, B.H. .
Daw1922 Pub. La Plata Obs. 4, Pt.2, 1922
Daw1922b orb - Dawson, B.H. 1922AJ.....34...17D
Daw1922b AJ 34, 17, 1922
Daw1924a Ma - Dawson, B.H. 1924AJ.....35..147D
Daw1924a AJ 35, 147, 1924 (DAW 112 - 158; data also in Daw1937)
Daw1924b orb - Dawson, B.H. 1924AJ.....36...23D
Daw1924b AJ 36, 23, 1924
Daw1926 orb - Dawson, B.H. 1926AJ.....36..181D
Daw1926 AJ 36, 181, 1926
Daw1927A Ma - Dawson, B.H. 1927sdsc.book......
Daw1927A cited in SDS (Southern Double Star Cat.), 1927
Daw1933 orb - Dawson, B.H. 1933AJ.....43...15D
Daw1933 AJ 43, 15, 1933
Daw1937 Ma - Dawson, B.H. .
Daw1937 Pub. La Plata Obs. 6, 85, 1937
Daw9999 Ma - Dawson, B.H. ...................
Daw9999 Unpublished, manuscript or reference not found.
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
07520-2747 HJ 2421 AB 1999 3 80 8.8 10.42 12.60 D 075201.80-274751.7
07520-2747 HJ 2421 AB 2015 5 84 8.6 10.42 11.60 075201.80-274751.7

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

 
 
WDS 07520-2747 HJ 2421 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 07520-2747 HJ 2421 AB : MEASURES
 
 
No records found.

 
 
WDS 07520-2747 : VIRTUAL EYEPIECE
 
 

07520-2747 HJ 2421A mag 10.42 07520-2747 HJ 2421B sep 7.6 P.A. 83.00 mag 11.6 07520-2747 DAW9004C sep 4.8 P.A. 13.20 mag 14 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 07520-2747 : ALADIN DSS IMAGE @ 07h 52m 01.80s -27° 47' 51.7"
 
 
 
 
WDS 07520-2747 HJ 2421 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

07520-2747 HJ 2421AB distance=0' 07522-2746 TDS5293 distance=4' 07524-2745 BRT2925 distance=6' 07523-2754 RST1369 distance=8' 07523-2800 KPP3730 distance=13' 07509-2729 TDS5268 distance=24' 07536-2728 I 782 distance=30' 07521-2818 B 747 distance=31' 07506-2813 TDS5262 distance=32' 07532-2817 TDS5304 distance=33' 07497-2734 TDS5241 distance=35' 07542-2729 TDS5320 distance=36' 07498-2810 TDS5246 distance=37' 07501-2815 HDS1113 distance=38' 07516-2826 TDS5282 distance=39' 07533-2714 TDS5305 distance=39' 07497-2815 HJ 4007 distance=41' 07545-2718 TDS5328 distance=44' 07553-2741 TDS5340 distance=44' 07544-2820 RST 290 distance=45' 07500-2824 TDS5248 distance=46' 07544-2715 B 749 distance=46' 07535-2832 RST 286 distance=48' 07488-2725 B 744 distance=49' 07555-2728 B 2641 distance=50' 07482-2756 TDS5216 distance=51' 07531-2700 BRT2927 distance=52' 07538-2702 BRT2929AB distance=53' 07538-2702 BRT2929BC distance=53' 07513-2655 RST1368 distance=54' 07518-2654 RSS 142 distance=55' 07562-2754 TDS5359 distance=55' 07484-2818 TDS5221 distance=57' 07478-2801 TDS5212 distance=58' 07483-2821 HDS1104AB distance=60' 07483-2821 SKF1445AB,C distance=60' 07535-2844 RST 289 distance=60' 07474-2732 TDS5207 distance=64' 07476-2722 TDS5210 distance=64' 07472-2739 TDS5201 distance=65' 07494-2843 B 1078 distance=65' 07567-2727 TDS5369 distance=66' 07543-2651 BRT2930 distance=66' 07558-2836 TDS5349 distance=70' 07476-2712 TDS5209 distance=70' 07574-2745 TDS5384 distance=71' 07556-2655 TDS5343 distance=72' 07498-2642 TDS5245 distance=73' 07566-2830 TDS5367 distance=74' 07536-2638 BRT2928 distance=74' 07496-2641 BRT2923 distance=74' 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 07520-2747 HJ 2421 AB 84 8.6
Show 07520-2747 DAW9004 AC 15 4.8
Show 07522-2746 TDS5293 339 0.5 4
Show 07524-2745 BRT2925 311 4.8 6
Show 07523-2754 RST1369 47 1.1 8
Show 07523-2800 KPP3730 244 1.9 13
Show 07509-2729 TDS5268 102 1.6 24
Show 07536-2728 I 782 254 1.9 30
Show 07521-2818 B 747 264 2.3 31
Show 07506-2813 TDS5262 225 0.4 32
Show 07532-2817 TDS5304 355 0.5 33
Show 07497-2734 TDS5241 325 0.6 35
Show 07542-2729 TDS5320 104 0.5 36
Show 07498-2810 TDS5246 102 0.4 37
Show 07501-2815 HDS1113 335 0.4 38
Show 07516-2826 TDS5282 164 1.9 39
Show 07533-2714 TDS5305 235 2.9 39
Show 07497-2815 HJ 4007 273 17.4 41
Show 07545-2718 TDS5328 303 0.6 44
Show 07553-2741 TDS5340 83 0.5 44
Show 07544-2820 RST 290 306 2.8 45
Show 07500-2824 TDS5248 170 1.1 46
Show 07544-2715 B 749 10 4.2 46
Show 07535-2832 RST 286 340 1.0 48
Show 07488-2725 B 744 204 4.7 49
Show 07555-2728 B 2641 339 6.6 50
Show 07482-2756 TDS5216 142 1.2 51
Show 07531-2700 BRT2927 50 2.0 52
Show 07538-2702 BRT2929 AB 100 3.8 53
Show 07538-2702 BRT2929 BC 127 5.9 53
Show 07513-2655 RST1368 325 1.9 54
Show 07518-2654 RSS 142 263 11.6 55
Show 07562-2754 TDS5359 12 0.4 55
Show 07484-2818 TDS5221 82 1.6 57
Show 07478-2801 TDS5212 122 3.0 58
Show 07483-2821 HDS1104 AB 229 1.8 60
Show 07483-2821 SKF1445 AB,C 339 11.3 60
Show 07535-2844 RST 289 79 0.8 60
Show 07474-2732 TDS5207 185 0.9 64
Show 07476-2722 TDS5210 278 0.5 64
Show 07472-2739 TDS5201 226 2.5 65
Show 07494-2843 B 1078 323 4.4 65
Show 07567-2727 TDS5369 348 1.1 66
Show 07543-2651 BRT2930 4.6 66
Show 07558-2836 TDS5349 81 1.4 70
Show 07476-2712 TDS5209 232 0.5 70
Show 07574-2745 TDS5384 358 1.2 71
Show 07556-2655 TDS5343 86 1.5 72
Show 07498-2642 TDS5245 251 0.7 73
Show 07566-2830 TDS5367 345 0.6 74
Show 07536-2638 BRT2928 119 4.8 74

 
 
WDS 07520-2747 : COMPONENTS
 
 
  A B
B pa=83.0°
sep=7.59"
 
C pa=13.2°
sep=4.79"
pa=300.1°
sep=7.45"
 
 
07520-2747 A
 
 
Coord arcsec 2000 075201.80-274751.7 Mag 10.42 PmRA -2.00 PmDE 33.0
Tycho2 6561-00462-1
Tycho2
Tycho2 6561-00462-1 Pflag RAmdeg 118.00752327 DEmdeg -27.79771306
PmRA 0.3 PmDE 32.8 E RAmdeg 24 E DEmdeg 20
E pmRA 2.8 E pmDE 2.4 EpRAm 1990.70 EpDEm 1990.92
Num 3 Q RAmdeg 2.5 Q DEmdeg 2.5 Q pmRA 2.5
Q pmDE 2.5 BTmag 11.446 E BTmag 0.047 VTmag 10.418
E VTmag 0.029 Prox 999 TYC T HIP
CCDM RAdeg 118.00752250 DEdeg -27.79778778 EpRA 1990 1.66
EpDE 1990 1.80 E RAdeg 24.3 E DEdeg 20.3 Posflg
Corr -0.1
 
 
07520-2747 B
 
 
Coord arcsec 2000 075202.37-274750.8 Mag 11.6 PmRA 21.00 PmDE 4.0
Calc delta mag 1.18 Calc coord yes
 
 
07520-2747 C
 
 
Coord arcsec 2000 075201.88-274747.0 Mag 14 Calc delta mag 3.58 Calc coord yes