Coord 2000 | 01531+2935 | Discov num | DAL 51 | Comp | FG | Coord arcsec 2000 | 01 53 14.51 +29 31 24.8 | ||||
Date first | 1997 | Date last | 2015 | Obs | 8 | ||||||
Pa first | 313 | Pa last | 313.5 | P.A. Now (θ) | 313.5° | ||||||
Sep first | 12.6 | Sep last | 12.64 | Sep. Now (ρ) | 12.64" | ||||||
Mag pri | 14.22 | Mag sec | 16.40 | delta mag (ΔM) | 2.18 | Spectral class | |||||
Pri motion ra | +004 | Sec motion ra | -013 | ||||||||
Pri motion dec | -012 | Sec motion dec | +009 | ||||||||
Notes | N U (See Notes, Proper motion indicates non-physical) |
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 | <=== |
Constellation | Triangulum | Gaia DR2 | 299463197395261696 |
discov_num | notes | refcode |
BUP 27 | alp Tri = 2 Tri = Mothallah. A is a spectroscopic binary, P = 1.77d. |
refcode | metd | author | reference |
BUP | Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913) | 1913QB811.B8....... | |
Dal1998 | Ma - | Daley, J.A. | 1998DSO.....4....4D |
Dal1998 | Double Star Observer 4, #4, 1998 | ||
Dal2000 | Ma u | Daley, J.A. | 2000DSO.....6....1D |
Dal2000 | Double Star Observer 6, #1, 2000 | ||
Dal2001a | Mb - | Daley, J.A. | 2001DSO.....7....1D |
Dal2001a | Double Star Observer 7, #1, 2001 | ||
Dal2001b | Ma u | Daley, J.A. | 2001DSO.....7....3D |
Dal2001b | Double Star Observer 7, #3, 2001 | ||
Dal2002a | Ma u | Daley, J.A. | 2002DSO.....8....1D |
Dal2002a | +C | Double Star Observer 8, #1, 2002 | |
Dal2002b | C u | Daley, J.A. | . |
Dal2002b | Pub. Ludwig Schupmann Obs, #1, 2002 | ||
Dal2002c | - | Daley, J.A. | 2002DSO.....8....4D |
Dal2002c | Double Star Observer 8, #4, 2002 | ||
Dal2002d | Mb u | Daley, J.A. | 2002DSO.....8....6D |
Dal2002d | Double Star Observer 8, #6, 2002 | ||
Dal2003a | C u | Daley, J.A. | . |
Dal2003a | Pub. Ludwig Schupmann Obs, #2, 2003 | ||
Dal2004a | C u | Daley, J.A. | . |
Dal2004a | Pub. Ludwig Schupmann Obs, #3, 2004 | ||
Dal2005a | C u | Daley, J.A. | 2005JDSO....1...74D |
Dal2005a | Pub. Ludwig Schupmann Obs, #4, 2005 (also JDSO 1, 74, 2005) | ||
Dal2006a | C u | Daley, J.A. | 2006JDSO....2...44D |
Dal2006a | JDSO 2, 44, 2006 | ||
Dal2006b | - | Daley, J.A. | 2006JDSO....2...51D |
Dal2006b | JDSO 2, 51, 2006 | ||
Dal2007 | C u | Daley, J. | 2007JDSO....3...68D |
Dal2007 | JDSO 3, 68, 2007 | ||
Dal2008 | C u | Daley, J. | 2008JDSO....4...34D |
Dal2008 | JDSO 4, 34, 2008 | ||
Dal2008b | C - | Daley, J. | ................... |
Dal2008b | private communication, 2008 | ||
Dal2008c | C u | Daley, J. | 2008JDSO....4..175D |
Dal2008c | JDSO 4, 175, 2008 | ||
Dal2009 | C u | Daley, J. | 2009JDSO....5..149D |
Dal2009 | JDSO 5, 149, 2009 | ||
Dal2011 | C u | Daley, J. | 2011JDSO....7..104D |
Dal2011 | JDSO 7, 104, 2011 | ||
Dal2012 | C u | Daley, J. | 2012JDSO....8..303D |
Dal2012 | JDSO 8, 303, 2012 | ||
Dal2014 | C u | Daley, J. | 2014JDSO...10..136D |
Dal2014 | JDSO 10, 136, 2014 | ||
Dal2014b | - | Daley, J. | ................... |
Dal2014b | private communication, 2014 | ||
Dal2016 | C - | Daley, J. | ................... |
Dal2016 | private communication, 2016 | ||
Dal2016b | C u | Daley, J. | 2016JDSO...12..468D |
Dal2016b | JDSO 12, 468, 2016 | ||
Dal2018 | C u | Daley, J. | 2018JDSO...14..543D |
Dal2018 | private communication, 2017 | ||
Dal2018 | JDSO 14, 543, 2018 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
01531+2935 | DAL 51 | FG | 2010 | 1 | 312 | 12.5 | 13.20 | 15.40 | 015314.51+293124.8 | ||
01531+2935 | DAL 51 | FG | 2015 | 5 | 314 | 12.6 | 14.22 | 16.40 | N | 015314.51+293124.8 |
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 | D | E | F | |
B | pa=322.4° sep=94.64" | |||||
C | pa=182.5° sep=198.41" | pa=169.8° sep=277.58" | ||||
D | pa=173.4° sep=276.61" | pa=165.6° sep=361.07" | pa=152.0° sep=86.66" | |||
E | pa=342.8° sep=144.71" | pa=13.3° sep=64.96" | pa=354.2° sep=338.18" | pa=349.7° sep=419.70" | ||
F | pa=147.8° sep=235.14" | pa=146.3° sep=329.49" | pa=90.3° sep=134.04" | pa=51.0° sep=120.27" | pa=153.5° sep=376.79" | |
G | pa=148.4° sep=223.54" | pa=146.6° sep=317.83" | pa=86.4° sep=126.31" | pa=45.3° sep=120.13" | pa=154.0° sep=365.46" | pa=317.5° sep=11.80" |
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 | 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 | 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 |
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 | 01531+2935 | N CCDM | I | Nsys | 1 | Ncomp | 1 | ||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | 11443 | BD | BD+28 312 | ||||||
CD | CP | Dm number | +28 312 | VIred | 0.55 | ||||||
SpType | F6IV | R SpType | Coord arcsec 2000 | 015304.90+293445.8 |
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 | 3.521 | E Hpmag | 0.0006 | ||||
SHp | 0.006 | VA | 1 | BV | 0.488 | E BV | 0.009 | ||||
VI | 0.55 |
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 |
Coord arcsec 2000 | 015300.49+293558.8 | Mag | 13.27 | PmRA | -18.00 | PmDE | -11.0 | ||||
Calc delta mag | 9.81 | Calc coord | yes |
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 |
Coord arcsec 2000 | 015304.24+293125.6 | Mag | 12.87 | PmRA | 7.00 | PmDE | 1.0 | ||||
Calc delta mag | 9.41 | Calc coord | yes |
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 |
Coord arcsec 2000 | 015307.35+293009.0 | Mag | 10.99 | PmRA | 14.00 | PmDE | 3.0 | ||||
Calc delta mag | 7.53 | Calc coord | yes |
Coord arcsec 2000 | 015301.63+293702.0 | Mag | 12.35 | PmRA | 25.00 | PmDE | 27.0 | ||||
Calc delta mag | 8.89 | Calc coord | yes |
Coord arcsec 2000 | 015314.51+293124.8 | Coord calc | 015314.51+293124.8 | Mag | 14.22 | PmRA | 4.00 | ||||
PmDE | -12.0 | Calc delta mag | 10.76 |
Coord arcsec 2000 | 015313.90+293133.5 | Mag | 16.4 | PmRA | -13.00 | PmDE | 9.0 | ||||
Calc delta mag | 12.94 | Calc coord | yes |