Coord 2000 | 14000-4714 | Discov num | HJ 4638 | Comp | AC | Coord arcsec 2000 | 13 59 59.52 -47 13 34.2 | ||||
Date first | 1834 | Date last | 2015 | Obs | 9 | ||||||
Pa first | 125 | Pa last | 110.4 | P.A. Now (θ) | 110.4° | ||||||
Sep first | 4.0 | Sep last | 9.478 | Sep. Now (ρ) | 9.478" | ||||||
Mag pri | 9.75 | Mag sec | 12.20 | delta mag (ΔM) | 2.45 | Spectral class | B7V (blue-white) | ||||
Pri motion ra | +004 | Sec motion ra | -013 | ||||||||
Pri motion dec | -005 | Sec motion dec | -008 | ||||||||
Notes | N (See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | HD 121987 | 224601 | 13 59 60 -47 13 34 | HJ 4638 AB | 2015 | 8 | 311 | 7.8 | 9.75 | 11.10 | 1.35 | ||
Show | 224601 | 13 59 60 -47 13 34 | HJ 4638 AC | 2015 | 9 | 110 | 9.5 | 9.75 | 12.20 | 2.45 | <=== | ||
Show | 224601 | 13 59 60 -47 13 34 | DAW 207 AD | 2015 | 9 | 256 | 9.4 | 9.75 | 12.40 | 2.65 |
Var name | ZZ Cen | Constellation | Centaurus | SAO | 224601 | Tycho2 | 8267-01335-1 | ||||
Gaia DR2 | 6095201502389790080 | HD | 121987 |
discov_num | notes | refcode |
DAW 207 | D: AA Cen | |
HJ 4638 | C: ZZ Cen. Both are variables of unknown type. |
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. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
14000-4714 | HJ 4638 | AC | 1999 | 6 | 110 | 9.5 | 9.75 | 12.20 | N D | 135959.52-471334.2 | |
14000-4714 | HJ 4638 | AC | 2015 | 9 | 110 | 9.5 | 9.75 | 12.20 | B7V | N | 135959.52-471334.2 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | B | C | |
B | pa=321.6° sep=6.46" | ||
C | pa=118.7° sep=6.88" | pa=129.8° sep=13.08" | |
D | pa=250.0° sep=6.61" | pa=196.7° sep=7.65" | pa=274.9° sep=12.29" |
Name | HD 121987 | Coord arcsec 2000 | 135959.52-471334.2 | Mag | 9.75 | Spectral class | B7V (blue-white) | ||||
PmRA | 4.00 | PmDE | -5.0 | SAO | 224601 | Tycho2 | 8267-01335-1 | ||||
HD | 121987 | DM | CP-46 6590 |
Tycho2 | 8267-01335-1 | Pflag | RAmdeg | 209.99804276 | DEmdeg | -47.22619291 | |||||
PmRA | -2.5 | PmDE | -1.3 | E RAmdeg | 12 | E DEmdeg | 12 | ||||
E pmRA | 1.3 | E pmDE | 1.2 | EpRAm | 1989.84 | EpDEm | 1988.94 | ||||
Num | 7 | Q RAmdeg | 1.2 | Q DEmdeg | 0.7 | Q pmRA | 1.2 | ||||
Q pmDE | 0.7 | BTmag | 9.774 | E BTmag | 0.022 | VTmag | 9.752 | ||||
E VTmag | 0.025 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 209.99805250 | DEdeg | -47.22618944 | EpRA 1990 | 1.63 | |||||
EpDE 1990 | 1.48 | E RAdeg | 11.8 | E DEdeg | 12.9 | Posflg | |||||
Corr | -0.2 |
SAO | 224601 | DelFlag | RA1950 | PmRA1950 | -0.0009 | ||||||
DE1950 | PmDE1950 | -0.011 | Vmag | 9.7 | SpType | B9 | |||||
Double code | Source | 48 | CatNum | 11899 | DM | CP-46 6590 | |||||
DMcomp | BDsup | HD | 121987 | M HD | 0 | ||||||
GC | RA1950rad | 3.65138924 | DE1950rad | -0.82002802 | PmRA2000 | -0.0009 | |||||
PmDE2000 | -0.008 |
Ccdm | 14000-4714 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -0.54 | DDEs | 25.1 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 4 | Vmag | 9.5 | Sp | B9 | PmNote | * | ||||
PmRA | -9 | PmDE | -11 | Dm number | -46 8999 | Cat1 | CD | ||||
Name2 | 224601 | Cat2 | SAO | HD | 121987 | M HD | |||||
ADS BDS | M ADS BDS | N IDS | IDS | 13537S4644A | |||||||
HIC |
Coord arcsec 2000 | 135959.13-471329.1 | Mag | 11.1 | Calc delta mag | 1.35 | Calc coord | yes |
Ccdm | 14000-4714 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | HJ 4638 | DRAs | DDEs | |||||||
R dRAs | Year | 1913 | Theta | 314 | Rho | 8.0 | |||||
Obs | 1 | Vmag | 10.8 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | M ADS BDS | N IDS | IDS | 13537S4644B | |||||||
HIC |
Var name | ZZ Cen | Coord arcsec 2000 | 140000.11-471337.5 | Mag | 12.2 | PmRA | -13.00 | ||||
PmDE | -8.0 | Calc delta mag | 2.45 | Calc coord | yes |
Ccdm | 14000-4714 | RComp | Comp | C | Note1 | ||||||
Note2 | Discov num | HJ 4638 | DRAs | DDEs | |||||||
R dRAs | Year | 1913 | Theta | 110 | Rho | 9.3 | |||||
Obs | 1 | Vmag | Sp | PmNote | |||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | M ADS BDS | N | N IDS | IDS | 13537S4644C | ||||||
HIC |
Var name | AA Cen | Coord arcsec 2000 | 135958.91-471336.5 | Mag | 12.4 | PmRA | -23.00 | ||||
PmDE | -18.0 | Calc delta mag | 2.65 | Calc coord | yes |
Ccdm | 14000-4714 | RComp | Comp | D | Note1 | ||||||
Note2 | Discov num | DAW | DRAs | DDEs | |||||||
R dRAs | Year | 1913 | Theta | 259 | Rho | 9.4 | |||||
Obs | 1 | Vmag | Sp | PmNote | |||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | M ADS BDS | N | N IDS | IDS | 13537S4644D | ||||||
HIC |