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Current system
01531+2935
BUP 27 AB


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FRK 2

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ES 321

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TDS2020

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HO 496

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A 2009AB

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

01531+2935 BUP 27 AB

 
 
01h 53m 04.91s +29° 34' 43.8" P.A. 319.00 sep 100.2 mag 3.46,13.27 Sp F6IV dist. 19.42 pc (63.35 l.y.)
 
 
Coord 2000 01531+2935 Discov num BUP  27 Comp AB Coord arcsec 2000 01 53 04.91 +29 34 43.8
Date first 1879 Date last 2010 Obs 5
Pa first 304 Pa last 318.5 P.A. Now (θ) 318.5°
Sep first 80.6 Sep last 100.15 Sep. Now (ρ) 100.15"
Mag pri 3.46 Mag sec 13.27 delta mag (ΔM) 9.81 Spectral class F6IV (yellow-white)
Pri motion ra +011 Sec motion ra -018
Pri motion dec -234 Sec motion dec -011
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.96
This double is not physical.
 
 
01531+2935 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 74996 01 53 05 +29 34 44 BUP 27 AB 2010 5 319 100.2 3.46 13.27 9.81 <===
Show 74996 01 53 05 +29 34 44 BUP 27 AC 2012 6 183 198.5 3.46 12.87 9.41
Show Mothallah 74996 01 53 05 +29 34 44 BUP 27 AD 2012 8 172 277.2 3.46 10.99 7.53
Show 74996 01 53 05 +29 34 44 DAL 51 AE 2010 4 340 146.7 3.46 12.35 8.89
Show 74996 01 53 05 +29 34 44 DAL 51 AF 2010 3 148 229.5 3.46 14.22 10.76
Show 01 53 15 +29 31 25 DAL 51 FG 2015 8 314 12.6 14.22 16.40 2.18
Septuple system
7 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Mothallah Constellation Triangulum SAO 74996 HIP 8796
Tycho2 1763-03028-1 Gaia DR2 299464296906886016 HD 11443 HR 544
GC 2272 BD BD+28 312 Bayer Alpha Trianguli Bayer name Alp Tri
Flamsteed 2 Trianguli Flamsteed name 2 Tri FK5 64 Distance 19.42
Distance ly 63.35 Bayer greek α Tri
Other names Ras al Muthallah, Ras al Mothallah, Caput Trianguli, Rasalmudallah, Metallah, Atria
Meaning the apex of the triangle
 
 
WDS 01531+2935 BUP 27 AB : NOTES
 
 
discov_num notes refcode
BUP 27 alp Tri = 2 Tri = Mothallah. A is a spectroscopic binary, P = 1.77d.
 
 
DISCOVERER
 
 
discov author
BUP Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
01531+2935 BUP 27 AB 1909 3 309 85.0 3.41 12.90 F6IV +28 312 N 015304.90+293445.8
01531+2935 BUP 27 AB 2010 3 319 100.2 3.41 12.90 F6IV +28 312 N 015304.90+293445.8

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

 
 
WDS 01531+2935 BUP 27 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 01531+2935 BUP 27 AB : MEASURES
 
 
No records found.

 
 
WDS 01531+2935 : VIRTUAL EYEPIECE
 
 

01531+2935 BUP 27A mag 3.46 Sp F6IV 01531+2935 BUP 27B sep 100.2 P.A. 318.50 mag 13.27 01531+2935 BUP 27C sep 198.5 P.A. 182.90 mag 12.87 01531+2935 BUP 27D sep 277.2 P.A. 172.40 mag 10.99 01531+2935 DAL 51E sep 146.7 P.A. 340.40 mag 12.35 01531+2935 DAL 51F sep 235.1 P.A. 147.80 mag 14.22 01531+2935 DAL 51G sep 222.9 P.A. 148.60 mag 16.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 01531+2935 : ALADIN DSS IMAGE @ 01h 53m 04.91s +29° 34' 43.8"
 
 
 
 
WDS 01531+2935 BUP 27 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

01531+2935 BUP 27AB (Mothallah) distance=0' 01531+2935 DAL 51FG distance=4' 01539+2932 AZC 18 distance=12' 01504+2942 MLB1059 distance=36' 01524+2845 AZC 17 distance=51' 01551+2847 STF 183AB distance=54' 01551+2847 STF 183AB,C distance=54' 01535+3030 MLB 737 distance=55' 01483+2925 GRV 99 distance=63' 01564+3026 FRK 2 distance=68' 01479+2952 GRV 98 distance=69' 01495+2842 STF 176 distance=71' 01563+3032 GRV 105 distance=72' 01568+3033 KO 4 distance=76' 01572+3027 J 2720 distance=77' 01496+3037 TDS2015 distance=77' 01590+2941 AZC 19 distance=79' 01571+3034 ES 321 distance=81' 01504+3050 TDS2020 distance=83' 01586+2855 GRV 107 distance=84' 01467+2937 HO 496 distance=84' 01465+2936 COU 451 distance=86' 01580+3033 KPP 759 distance=87' 01520+2809 SKF1603 distance=88' 01597+3003 UC 655 distance=91' 01581+3041 TDS2070 distance=94' 01484+2824 CVR 31 distance=94' 01492+2815 A 2009AB distance=96' 01477+2829 STF 161 distance=97' 01570+3101 A 819AB distance=101' 01570+3101 A 819AB,C distance=101' 01485+2811 BRT 6 distance=102' 01593+2831 CVR 407 distance=104' 01452+3011 WFC 249 distance=109' 01596+3044 COU 669 distance=109' 01517+2743 GRV 103 distance=113' 01526+3127 HJ 645 distance=113' 01451+2844 HDS 232 distance=117' 01464+3101 KPP 79 distance=122' 01556+2732 MLB 635 distance=127' 02011+3051 LDS3335 distance=130' 02021+3031 UC 21 distance=131' 01455+3103 GRV 97 distance=132' 01563+2729 COU 752 distance=133' 01576+3134 BAR 21BC distance=133' 01576+3134 STF 187AB distance=133' 01576+3134 BAR 21AD distance=133' 01432+3006 MLB 680 distance=133' 01450+3059 KPP 863 distance=135' 02021+2824 LSC 18 distance=139' 01424+2955 GRV 95 distance=140' 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 Mothallah 01531+2935 BUP 27 AB 319 100.2 0
Show Mothallah 01531+2935 BUP 27 AC 183 198.5 0
Show Mothallah 01531+2935 BUP 27 AD 172 277.2 0
Show Mothallah 01531+2935 DAL 51 AE 340 146.7 0
Show Mothallah 01531+2935 DAL 51 AF 148 229.5 0
Show 01531+2935 DAL 51 FG 314 12.6 4
Show 01539+2932 AZC 18 354 13.9 12
Show 01504+2942 MLB1059 296 2.5 36
Show 01524+2845 AZC 17 134 19.0 51
Show 01551+2847 STF 183 AB 139 0.3 54
Show 01551+2847 STF 183 AB,C 162 5.6 54
Show 01535+3030 MLB 737 135 3.2 55
Show 01483+2925 GRV 99 28 36.3 63
Show 01564+3026 FRK 2 307 53.4 68
Show 01479+2952 GRV 98 143 17.1 69
Show 01495+2842 STF 176 331 23.8 71
Show 01563+3032 GRV 105 280 23.0 72
Show 01568+3033 KO 4 191 299.1 76
Show 01572+3027 J 2720 318 7.9 77
Show 01496+3037 TDS2015 276 0.9 77
Show 01590+2941 AZC 19 131 9.8 79
Show 01571+3034 ES 321 189 3.3 81
Show 01504+3050 TDS2020 184 2.2 83
Show 01586+2855 GRV 107 261 43.9 84
Show 01467+2937 HO 496 178 14.4 84
Show 01465+2936 COU 451 83 0.3 86
Show 01580+3033 KPP 759 302 6.6 87
Show 01520+2809 SKF1603 99 2.0 88
Show 01597+3003 UC 655 265 65.9 91
Show 01581+3041 TDS2070 244 0.7 94
Show 01484+2824 CVR 31 200 18.5 94
Show 01492+2815 A 2009 AB 321 0.9 96
Show 01477+2829 STF 161 212 24.1 97
Show 01570+3101 A 819 AB 59 0.2 101
Show 01570+3101 A 819 AB,C 271 66.4 101
Show 01485+2811 BRT 6 74 5.4 102
Show 01593+2831 CVR 407 96 13.1 104
Show 01452+3011 WFC 249 94 10.3 109
Show 01596+3044 COU 669 289 1.0 109
Show 01517+2743 GRV 103 323 52.2 113
Show 01526+3127 HJ 645 106 7.8 113
Show 01451+2844 HDS 232 252 0.2 117
Show 01464+3101 KPP 79 270 3.4 122
Show 01556+2732 MLB 635 164 7.0 127
Show 02011+3051 LDS3335 237 113.0 130
Show 02021+3031 UC 21 215 53.0 131
Show 01455+3103 GRV 97 229 64.8 132
Show 01563+2729 COU 752 171 1.8 133
Show 01576+3134 BAR 21 BC 253 2.3 133
Show 01576+3134 STF 187 AB 189 10.9 133
Show 01576+3134 BAR 21 AD 244 19.8 133

 
 
WDS 01531+2935 : COMPONENTS
 
 
  A B C D E F
B pa=318.5°
sep=100.15"
 
C pa=182.9°
sep=198.47"
pa=168.4°
sep=278.97"
 
D pa=172.4°
sep=277.20"
pa=163.6°
sep=364.63"
pa=148.6°
sep=89.68"
 
E pa=340.4°
sep=146.74"
pa=15.2°
sep=65.51"
pa=353.4°
sep=338.73"
pa=348.2°
sep=421.84"
 
F pa=147.8°
sep=235.14"
pa=145.0°
sep=334.37"
pa=90.3°
sep=135.35"
pa=49.5°
sep=116.60"
pa=152.7°
sep=379.70"
 
G pa=148.6°
sep=222.92"
pa=145.5°
sep=321.99"
pa=86.4°
sep=126.43"
pa=43.3°
sep=115.96"
pa=153.3°
sep=367.78"
pa=313.5°
sep=12.64"
 
 
01531+2935 A
 
 
Common name Mothallah Meaning the apex of the triangle Other names Ras al Muthallah, Ras al Mothallah, Caput Trianguli, Rasalmudallah, Metallah, Atria Coord arcsec 2000 015304.91+293443.8
Mag 3.46 Spectral class F6IV (yellow-white) PmRA 11.00 PmDE -234.0
SAO 74996 HIP 8796 Tycho2 1763-03028-1 HD 11443
HR 544 GC 2272 BD BD+28 312 Bayer Alpha Trianguli
Bayer name alp Tri Flamsteed 2 Trianguli Flamsteed name 2 Tri FK5 64
Tycho2
Tycho2 1763-03028-1 Pflag RAmdeg 28.27045048 DEmdeg 29.57882527
PmRA 12.0 PmDE -234.9 E RAmdeg 3 E DEmdeg 3
E pmRA 0.6 E pmDE 0.6 EpRAm 1991.40 EpDEm 1991.35
Num 25 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 0.8 BTmag 3.984 E BTmag 0.014 VTmag 3.457
E VTmag 0.009 Prox 999 TYC T HIP 8796
CCDM RAdeg 28.27041917 DEdeg 29.57936528 EpRA 1990 1.83
EpDE 1990 1.73 E RAdeg 3.2 E DEdeg 3.4 Posflg
Corr -0.2
SAO
SAO 74996 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 -0.229 Vmag 3.6 SpType F5
Double code Source 74 CatNum 64 DM BD+28 312
DMcomp BDsup HD 11443 M HD 0
GC 2272 RA1950rad 0.48094292 DE1950rad 0.51201241 PmRA2000 0.0008
PmDE2000 -0.234
Hipparcos
Catalog H HIP 8796 Proxy RAhms 01 53 04.90
DEdms +29 34 45.8 Vmag 3.42 VarFlag 1 R Vmag G
RAdeg 28.2704 DEdeg 29.5794 AstroRef Plx 50.87
CCDM 12.02 - N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD BD BD+28 312
CD CP Dm number +28 312 VIred 0.55
SpType F6IV R SpType Coord arcsec 2000 015304.90+293445.8
Hipparcos 2
HIP 8796 Sn 5 So 0 Nc 1
RArad 0.49341184 DErad 0.5162578708 Plx 51.5 PmRA 10.82
PmDE -234.24 E RArad 0.19 E DErad 0.13 E Plx 0.23
E pmRA 0.21 E pmDE 0.16 Hpmag E Hpmag 0.0006
SHp 0.006 VA 1 BV 0.488 E BV 0.009
VI 0.55
CCDM
Ccdm 01531+2935 RComp Comp A Note1
Note2 Discov num DRAs -1.10 DDEs -16.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 3.6 Sp F5 PmNote *
PmRA 11 PmDE -230 Dm number +28 312 Cat1 BD
Name2 +29 233 Cat2 AGK2/3 HD 11443 M HD
ADS BDS M ADS BDS N IDS IDS 01474N2906A
HIC 8796
 
 
01531+2935 B
 
 
Coord arcsec 2000 015259.82+293558.8 Mag 13.27 PmRA -18.00 PmDE -11.0
Delta magnitude 9.81 Coordinate calculated yes
CCDM
Ccdm 01531+2935 RComp Comp B Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1909 Theta 309 Rho 85.0
Obs 2 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 01474N2906B
HIC
 
 
01531+2935 C
 
 
Coord arcsec 2000 015304.14+293125.6 Mag 12.87 PmRA 7.00 PmDE 1.0
Delta magnitude 9.41 Coordinate calculated yes
CCDM
Ccdm 01531+2935 RComp Comp C Note1
Note2 Discov num BUP DRAs DDEs
R dRAs Year 1909 Theta 182 Rho 222.3
Obs 2 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 01474N2906C
HIC
 
 
01531+2935 D
 
 
Coord arcsec 2000 015307.72+293009.0 Mag 10.99 PmRA 14.00 PmDE 3.0
Delta magnitude 7.53 Coordinate calculated yes
 
 
01531+2935 E
 
 
Coord arcsec 2000 015301.14+293702.0 Mag 12.35 PmRA 25.00 PmDE 27.0
Delta magnitude 8.89 Coordinate calculated yes
 
 
01531+2935 F
 
 
Coord arcsec 2000 015314.51+293124.8 Coord calc 015314.51+293124.8 Mag 14.22 PmRA 4.00
PmDE -12.0 Delta magnitude 10.76
 
 
01531+2935 G
 
 
Coord arcsec 2000 015313.81+293133.5 Mag 16.4 PmRA -13.00 PmDE 9.0
Delta magnitude 12.94 Coordinate calculated yes