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Doubles in session


Current system
10200+1950
STF 1424 AD


Nearby doubles
21' : 10192+2008
CVR1280

23' : 10197+1928
WNO 53AB

33' : 10178+2000
A 2149AB

45' : 10192+2034
STF1423

46' : 10168+1955
CVR1276

55' : 10213+1859
TDS7209

55' : 10199+1856
CVR1282

62' : 10192+1850
COU 289

69' : 10248+2002
FMR 215

69' : 10208+2058
SLW 464

81' : 10151+1907
STF1417

87' : 10141+2014
DAM2164

91' : 10264+1951
GWP1372

92' : 10139+2024
DAM2157

97' : 10217+2124
HJL1058

100' : 10168+1822
HJ 478AB

100' : 10269+1931
COU 292

104' : 10210+1809
COU 50

106' : 10125+1942
COU 288

109' : 10143+2104
BWL 25

113' : 10280+1950
STF1435

113' : 10120+2007
HJ 476

117' : 10217+2144
COU 171

118' : 10157+1810
RAO 242

118' : 10203+1753
COU 290

120' : 10185+2148
DAM2283



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.

10200+1950 STF 1424 AD

 
 
10h 19m 58.35s +19° 50' 29.4" P.A. 302.00 sep 371.3 mag 2.37,10.62 Sp K1III+G5V dist. 39.89 pc (130.12 l.y.)
 
 
Coord 2000 10200+1950 Discov num STF1424 Comp AD Coord arcsec 2000 10 19 58.35 +19 50 29.4
Date first 1904 Date last 2016 Obs 15
Pa first 303 Pa last 302.2 P.A. Now (θ) 302.2°
Sep first 333.0 Sep last 371.29 Sep. Now (ρ) 371.29"
Mag pri 2.37 Mag sec 10.62 delta mag (ΔM) 8.25 Spectral class K1III+G5V (yellow-orange/yellow)
Pri motion ra +311 Sec motion ra -008
Pri motion dec -153 Sec motion dec -025
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.992
This double is not physical.
 
 
10200+1950 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Algieba 81298 10 19 58 +19 50 29 STF 1424 AB 2020 863 127 4.7 2.37 3.64 1.27 Y
Show 81298 10 19 58 +19 50 29 STF 1424 AC 2016 31 288 341.2 2.37 9.64 7.27
Show 81298 10 19 58 +19 50 29 STF 1424 AD 2016 15 302 371.3 2.37 10.62 8.25 <===
Show 10 19 59 +19 50 27 STF 1424 BC 1998 9 288 327.4 3.64 9.64 6.00
Show 10 19 36 +19 52 12 BAG 32 Ca,Cb 2012 4 24 0.2 9.30 11.30 2.00 Y
Show 10 19 36 +19 52 12 STF 1424 CD 2016 30 6 90.7 9.64 10.62 0.98
Show 10 19 36 +19 52 12 FYM 38 CE 2012 3 59 148.6 9.64 12.95 3.31
Show 10 19 36 +19 52 12 FYM 38 CF 2012 3 238 53.4 9.64 14.10 4.46
Septuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Algieba Var name NSV4823 Leo Constellation Leo SAO 81298
HIP 50583 Tycho2 1423-01349-1 HD 89484 HR 4057
GC 14177 ADS 7724 BD BD+20 2467 Bayer Gamma 1 Leonis
Bayer name Gam1 Leo Flamsteed 41 Leonis Flamsteed name 41 Leo Distance 39.89
Distance ly 130.12 Bayer greek γ1 Leo
Other names Algeiba
Meaning From Arabic: ?????? al-jabha ('the forehead' [of the lion]).
 
 
WDS 10200+1950 STF 1424 AD : NOTES
 
 
discov_num notes refcode
STF1424 A: gam Leo = 41 Leo = Algieba
Star C is flare star AD Leo = BD +20 2465, 5' distant, and not Bag1984b
related to the pair AB. This companion has been detected only at
7500 Angstroms, and is expected to have a very low mass.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
D is BD+20@2464.
AC: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
BAG 32 Ca,Cb. 1981.2446: Flare star (M4.5Ve) known as having an unseen
companion of P ~ 27 yr (Reuyl 1943). Companion has been detected only Reu1943
at 750 nm. The companion is expected to have a very low mass. Bag1984b
STF1424 AB: H 1 28. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Bag1984b S j Balega, Y.Y., Bonneau, D., & Foy, R 1984A&AS...57...31B
Bag1984b A&AS 57, 31, 1984
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Reu1943 orb - Reuyl, D. 1943ApJ....97..186R
Reu1943 ApJ 97, 186, 1943
 
 
DISCOVERER
 
 
idgroup discov author
1 FYM Fay, M.
28 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10200+1950 STF1424 AD 2008 6 305 368.3 2.37 9.80 K0III N D 101958.16+195030.7
10200+1950 STF1424 AD 2009 10 302 367.6 2.37 10.62 K0III N D 101958.16+195030.7
10200+1950 STF1424 AD 2010 11 302 367.8 2.37 10.62 K0III N D 101958.16+195030.7
10200+1950 STF1424 AD 2011 12 303 367.3 2.37 10.62 K0III N D 101958.16+195030.7
10200+1950 STF1424 AD 2012 13 302 369.6 2.37 10.62 K0III N 101958.16+195030.7
10200+1950 STF1424 AD 2015 14 302 371.0 2.37 10.62 K0III N 101958.16+195030.7
10200+1950 STF1424 AD 2016 15 302 371.3 2.37 10.62 K0III+G5V N 101958.35+195029.4

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

 
 
WDS 10200+1950 STF 1424 AD : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 10200+1950 STF 1424 AD : MEASURES
 
 
No records found.

 
 
WDS 10200+1950 : VIRTUAL EYEPIECE
 
 

10200+1950 STF1424A mag 2.37 Sp K1III 10200+1950 STF1424B sep 4.7 P.A. 125.30 mag 3.64 Sp G5III 10200+1950 STF1424C sep 328.0 P.A. 288.20 mag 9.64 Sp M4.5V 10200+1950 BAG 32Cb sep 328.0 P.A. 288.30 mag 11.3 10200+1950 STF1424D sep 355.6 P.A. 303.80 mag 10.62 Sp G5V 10200+1950 FYM 38E sep 262.9 P.A. 313.10 mag 12.95 10200+1950 FYM 38F sep 361.7 P.A. 281.80 mag 14.1 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 10200+1950 : ALADIN DSS IMAGE @ 10h 19m 58.35s +19° 50' 29.4"
 
 
 
 
WDS 10200+1950 STF 1424 AD : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

10200+1950 STF1424AD (Algieba) distance=0' 10200+1950 STF1424BC distance=1' 10200+1950 BAG 32Ca,Cb distance=6' 10200+1950 STF1424CD distance=6' 10200+1950 FYM 38CE distance=6' 10200+1950 FYM 38CF distance=6' 10192+2008 CVR1280 distance=21' 10197+1928 WNO 53AB distance=23' 10178+2000 A 2149AB distance=33' 10178+2000 A 2149AC distance=33' 10178+2000 GII 170Aa,Ab distance=33' 10192+2034 STF1423 distance=45' 10168+1955 CVR1276 distance=46' 10213+1859 TDS7209 distance=55' 10199+1856 CVR1282 distance=55' 10192+1850 COU 289 distance=62' 10248+2002 FMR 215 distance=69' 10208+2058 SLW 464 distance=69' 10197+1928 LDS3969BC distance=79' 10151+1907 STF1417 distance=81' 10141+2014 DAM2164 distance=87' 10264+1951 GWP1372 distance=91' 10139+2024 DAM2157 distance=92' 10217+2124 HJL1058 distance=97' 10168+1822 HJ 478AB distance=100' 10168+1822 HJ 478AC distance=100' 10269+1931 COU 292 distance=100' 10210+1809 COU 50 distance=104' 10125+1942 COU 288 distance=106' 10143+2104 BWL 25 distance=109' 10280+1950 STF1435 distance=113' 10120+2007 HJ 476 distance=113' 10217+2144 COU 171 distance=117' 10157+1810 RAO 242 distance=118' 10203+1753 COU 290 distance=118' 10185+2148 DAM2283 distance=120' 10269+2106 CVR1291 distance=123' 10261+1821 COU 291 distance=125' 10228+2149 KPP 220 distance=126' 10187+2155 COU 170 distance=127' 10119+1853 KPP 862 distance=128' 10176+2155 LDS3973 distance=129' 10274+1834 GWP1376 distance=130' 10174+2156 CVR 554 distance=131' 10163+1744 STT 215 distance=137' 10126+1820 ZHN 15 distance=139' 10146+1753 L 10 distance=141' 10121+2118 A 2146 distance=142' 10228+1733 SLW 468 distance=144' 10301+1931 KPP3818 distance=145' 10262+1756 HAU 22 distance=145' 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 Algieba 10200+1950 STF1424 AB 127 4.7
Show Algieba 10200+1950 STF1424 AC 288 341.2
Show Algieba 10200+1950 STF1424 AD 302 371.3
Show 10200+1950 STF1424 BC 288 327.4 1
Show 10200+1950 BAG 32 Ca,Cb 24 0.2 6
Show 10200+1950 STF1424 CD 6 90.7 6
Show 10200+1950 FYM 38 CE 59 148.6 6
Show 10200+1950 FYM 38 CF 238 53.4 6
Show 10192+2008 CVR1280 275 3.3 21
Show 10197+1928 WNO 53 AB 308 999.9 23
Show 10178+2000 A 2149 AB 306 1.5 33
Show 10178+2000 A 2149 AC 194 9.6 33
Show 10178+2000 GII 170 Aa,Ab 96 0.2 33
Show 10192+2034 STF1423 308 0.7 45
Show 10168+1955 CVR1276 75 3.4 46
Show 10213+1859 TDS7209 65 0.7 55
Show 10199+1856 CVR1282 74 3.1 55
Show 10192+1850 COU 289 68 0.2 62
Show 10248+2002 FMR 215 264 2.5 69
Show 10208+2058 SLW 464 77 179.6 69
Show 10197+1928 LDS3969 BC 10 5.2 79
Show 10151+1907 STF1417 78 2.4 81
Show 10141+2014 DAM2164 94 5.3 87
Show 10264+1951 GWP1372 145 110.9 91
Show 10139+2024 DAM2157 222 4.8 92
Show 10217+2124 HJL1058 149 196.1 97
Show 10168+1822 HJ 478 AB 127 18.4 100
Show 10168+1822 HJ 478 AC 180 24.7 100
Show 10269+1931 COU 292 50 0.2 100
Show 10210+1809 COU 50 177 0.2 104
Show 10125+1942 COU 288 2 0.6 106
Show 10143+2104 BWL 25 320 0.1 109
Show 10280+1950 STF1435 203 8.5 113
Show 10120+2007 HJ 476 49 24.1 113
Show 10217+2144 COU 171 130 3.7 117
Show 10157+1810 RAO 242 245 0.7 118
Show 10203+1753 COU 290 122 0.4 118
Show 10185+2148 DAM2283 239 16.5 120
Show 10269+2106 CVR1291 106 3.6 123
Show 10261+1821 COU 291 66 0.8 125
Show 10228+2149 KPP 220 149 3.9 126
Show 10187+2155 COU 170 112 0.9 127
Show 10119+1853 KPP 862 231 7.3 128
Show 10176+2155 LDS3973 53 15.0 129
Show 10274+1834 GWP1376 283 136.8 130
Show 10174+2156 CVR 554 233 19.8 131
Show 10163+1744 STT 215 176 1.5 137
Show 10126+1820 ZHN 15 67 435.1 139
Show 10146+1753 L 10 352 1.1 141
Show 10121+2118 A 2146 180 0.1 142
Show 10228+1733 SLW 468 128 10.5 144

 
 
WDS 10200+1950 : COMPONENTS
 
 
  A B C Cb D E
B pa=125.3°
sep=4.67"
 
C pa=288.2°
sep=327.97"
pa=288.5°
sep=332.44"
 
Cb pa=288.3°
sep=327.96"
pa=288.5°
sep=332.42"
pa=22.5°
sep=0.19"
 
D pa=303.8°
sep=355.60"
pa=303.8°
sep=360.27"
pa=9.5°
sep=96.59"
pa=9.5°
sep=96.40"
 
E pa=313.1°
sep=262.86"
pa=312.9°
sep=267.49"
pa=57.2°
sep=142.14"
pa=57.3°
sep=141.99"
pa=100.0°
sep=105.10"
 
F pa=281.8°
sep=361.71"
pa=282.1°
sep=365.99"
pa=236.2°
sep=51.15"
pa=236.1°
sep=51.32"
pa=205.3°
sep=136.85"
pa=236.9°
sep=193.29"
 
 
10200+1950 A
 
 
Common name Algieba Meaning From Arabic: ?????? al-jabha ('the forehead' [of the lion]). Other names Algeiba Coord arcsec 2000 101958.35+195029.4
Mag 2.37 Spectral class K1III (yellow-orange) PmRA 311.00 PmDE -153.0
SAO 81298 HIP 50583 Tycho2 1423-01349-1 HD 89484
HR 4057 GC 14177 BD BD+20 2467 Bayer Gamma Leonis
Bayer name Gam Leo Flamsteed 41 Leonis Flamsteed name 41 Leo
SAO
SAO 81298 DelFlag RA1950 PmRA1950 0.0218
DE1950 PmDE1950 -0.151 Vmag 2.6 SpType K0
Double code Source 70 CatNum 14177 DM BD+20 2467
DMcomp A BDsup HD 89484 M HD 0
GC 14177 RA1950rad 2.69312452 DE1950rad 0.35072808 PmRA2000 0.0217
PmDE2000 -0.147
Hipparcos
Catalog H HIP 50583 Proxy H RAhms 10 19 58.16
DEdms +19 50 30.7 Vmag 2.01 VarFlag 1 R Vmag G
RAdeg 154.992 DEdeg 19.8419 AstroRef A Plx 25.96
CCDM 10199+1951 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 124 Rho 4.581 HD 89484 BD BD+20 2467
CD CP Dm number +20 2467 VIred 1.17
SpType K0III R SpType Coord arcsec 2000 101958.16+195030.7
Hipparcos 2
HIP 50583 Sn 17 So 3 Nc 2
RArad 2.7051266664 DErad 0.3463057904 Plx 25.07 PmRA 304.3
PmDE -154.28 E RArad 0.58 E DErad 0.32 E Plx 0.52
E pmRA 0.71 E pmDE 0.36 Hpmag 2.1684 E Hpmag 0.0011
SHp 0.006 VA 2 BV 1.128 E BV 0.029
VI 1.17
 
 
10200+1950 B
 
 
Coord arcsec 2000 101958.62+195026.7 Coord calc 101958.62+195026.7 Mag 3.64 Spectral class G5III (yellow)
PmRA 306.00 PmDE -161.0 Calc delta mag 1.27
 
 
10200+1950 C
 
 
Var name AD Leo Coord arcsec 2000 101936.27+195212.0 Coord calc 101936.27+195212.0 Mag 9.64
Spectral class M4.5V (red) PmRA -499.00 PmDE -40.0 Tycho2 1423-00174-1
Calc delta mag 7.27
Tycho2
Tycho2 1423-00174-1 Pflag RAmdeg 154.90113196 DEmdeg 19.87002421
PmRA -501.8 PmDE -42.8 E RAmdeg 41 E DEmdeg 55
E pmRA 1.4 E pmDE 1.5 EpRAm 1971.49 EpDEm 1959.71
Num 10 Q RAmdeg 1.2 Q DEmdeg 0.9 Q pmRA 1.2
Q pmDE 0.9 BTmag 11.426 E BTmag 0.085 VTmag 9.640
E VTmag 0.031 Prox 898 TYC T HIP
CCDM RAdeg 154.90238722 DEdeg 19.87011444 EpRA 1990 1.67
EpDE 1990 1.16 E RAdeg 111.9 E DEdeg 163.0 Posflg
Corr -0.1
 
 
10200+1950 Cb
 
 
Coord arcsec 2000 101936.28+195212.2 Mag 11.3 Calc delta mag 8.93 Calc coord yes
 
 
10200+1950 D
 
 
Coord arcsec 2000 101937.40+195347.3 Mag 10.62 Spectral class G5V (yellow) PmRA -8.00
PmDE -25.0 Tycho2 1423-00165-1 Calc delta mag 8.25 Calc coord yes
Tycho2
Tycho2 1423-00165-1 Pflag RAmdeg 154.90138127 DEmdeg 19.89499863
PmRA -10.9 PmDE -24.5 E RAmdeg 79 E DEmdeg 86
E pmRA 1.9 E pmDE 2.2 EpRAm 1947.54 EpDEm 1936.91
Num 5 Q RAmdeg 0.5 Q DEmdeg 0.6 Q pmRA 0.5
Q pmDE 0.6 BTmag 12.008 E BTmag 0.141 VTmag 10.617
E VTmag 0.065 Prox 898 TYC T HIP
CCDM RAdeg 154.90141667 DEdeg 19.89505083 EpRA 1990 1.66
EpDE 1990 1.25 E RAdeg 125.9 E DEdeg 177.4 Posflg
Corr 0.0
 
 
10200+1950 E
 
 
Coord arcsec 2000 101944.74+195329.0 Mag 12.95 PmRA -8.00 PmDE -3.0
Calc delta mag 10.58 Calc coord yes
 
 
10200+1950 F
 
 
Coord arcsec 2000 101933.26+195143.5 Mag 14.1 PmRA -35.00 PmDE 8.0
Calc delta mag 11.73 Calc coord yes