Coord 2000 | 05354-0525 | Discov num | CHR 249 | Comp | Aa,Ab | Coord arcsec 2000 | 05 35 22.88 -05 24 57.7 | ||||
Date first | 1991 | Date last | 2016 | Obs | 15 | ||||||
Pa first | 283 | Pa last | 296 | P.A. Now (θ) | 296° | ||||||
Sep first | 0.4 | Sep last | 0.421 | Sep. Now (ρ) | 0.421" | ||||||
Mag pri | 5.10 | Mag sec | 8.31 | delta mag (ΔM) | 3.21 | Spectral class | O9.5IV (blue) | ||||
Pri motion ra | +002 | Sec motion ra | |||||||||
Pri motion dec | +002 | Sec motion dec | |||||||||
Notes | N (See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 132321 | 05 35 23 -05 24 58 | CHR 249 Aa,Ab | 2016 | 15 | 296 | 0.4 | 5.10 | 8.31 | 3.21 | <=== | ||
Show | 132321 | 05 35 23 -05 24 58 | GVT 2 Aa,Ac | 2018 | 3 | 343 | 0.0 | 4.90 | 5.70 | 0.80 | |||
Show | The2 Ori | 132321 | 05 35 23 -05 24 58 | STFA 16 AB | 2019 | 62 | 93 | 52.3 | 5.03 | 6.19 | 1.16 | ||
Show | 132321 | 05 35 23 -05 24 58 | STFA 16 AC | 2019 | 26 | 98 | 128.5 | 5.03 | 8.46 | 3.43 | |||
Show | 132321 | 05 35 23 -05 24 58 | STFA 17 AD | 2018 | 32 | 315 | 134.4 | 5.03 | 5.06 | 0.03 | |||
Show | 132322 | 05 35 26 -05 25 01 | STFA 16 BC | 2019 | 24 | 102 | 76.5 | 6.19 | 8.46 | 2.27 | |||
Show | 132322 | 05 35 26 -05 25 01 | GVT 2 Ba,Bb | 2018 | 1 | 316 | 0.1 | 6.40 | 10.60 | 4.20 | |||
Show | 05 35 31 -05 25 16 | GVT 2 Ca,Cb | 2018 | 1 | 286 | 0.0 | 7.50 | 9.90 | 2.40 | ||||
Show | 132314 | 05 35 16 -05 23 23 | LCS 9 DE | 1994 | 1 | 266 | 0.7 | 11.20 | 12.80 | 1.60 |
Var name | NSV2320 Ori | Constellation | Orion | SAO | 132321 | HIP | 26235 | ||||
Tycho2 | 4774-00933-1 | Gaia DR2 | 3017360936587007616 | HD | 37041 | HR | 1897 | ||||
GC | 6935 | ADS | 4188 | BD | BD-05 1319 | Bayer | Theta 2 Orionis | ||||
Bayer name | The2 Ori | Flamsteed | 43 Orionis | Flamsteed name | 43 Ori | Distance | 473.93 | ||||
Distance ly | 1545.96 | Bayer greek | θ2 Ori |
discov_num | notes | refcode |
STFA 16 | A: the 2 Ori A = 43 Ori. Spectroscopic binary, P = 21d. | |
B: the 2 Ori B = BD-05@ 1320. | ||
C component is primary of 05355-0525 S 490. | ||
STFA 17 | AD: This is the the 1 / the 2 Ori system | |
D component = C component of 05353-0523 STF 748. | ||
CHR 249 | The A component (CHR 249 Aa,Ab) was resolved on 3 occasions, but the | |
distant STFA 17B component was observed to be single. Hipparcos | HIP1997b | |
results confirm the Aa,Ab pair. The spectral classification for | Lev1991b | |
the B component is from Morrell & Levato (1991). | Msn1998a | |
Classification of the C component is from Hoffleit et al. (1983). | Hof1983 | |
GVT 2 | Ac is a 8-12 solar mass companion. | Gvt2018 |
GVT 2 | Bb is a 1.6 +/- 0.7 solar mass companion. | Gvt2018 |
GVT 2 | Cb is a 1.7 +/- 0.2 solar mass companion. | Gvt2018 |
refcode | metd | author | reference |
Gvt2018 | K | GRAVITY collaboration, Karl, M., Pfuhl, O., Eisenhauser, F., Genzel, R., Grellman, | 2018A&A...620A.116G |
Gvt2018 | +orb | R., Habibi, M., Abuter, R., Accardo, M., Amorim, A., Anugu, N., Avila, G. et al. | |
Gvt2018 | +not | A&A 620, 116, 2018 | |
HIP1997b | Hh - | Hipparcos | 1997yCat.1239....0E |
HIP1997b | Hipparcos Catalog, ESA SP-1200, 1997 | ||
HIP1997b | (double entry systems) | ||
Hof1983 | - | Hoffleit, D., Saladyga, M., & Wlasuk, P. | 1983stbs.book.....H |
Hof1983 | A Supplement to the Bright Star Catalogue, 1983 | ||
Lev1991b | - | Morrell, N. & Levato, H. | 1991ApJS...75..965M |
Lev1991b | ApJS 75, 965, 1991 | ||
Msn1998a | Sc j | Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., | 1998AJ....115..821M |
Msn1998a | ten Brummelaar, T.A., & McAlister, H.A. | ||
Msn1998a | AJ 115, 821, 1998 |
idgroup | discov | author |
1 | CHR | Center for High Ang. Res. Astronomy (speckle interferometry systems) |
3 | LCS | Lucas, P.W., Roche, P.F., & Tamura, M. |
4 | STF | Struve, F.G.W. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
05354-0525 | CHR 249 | Aa,Ab | 2006 | 9 | 293 | 0.4 | 5.05 | 8.28 | O9.5Vep | N D | 053522.90-052457.8 |
05354-0525 | CHR 249 | Aa,Ab | 2008 | 11 | 295 | 0.4 | 5.05 | 8.28 | O9.5Vep | N D | 053522.90-052457.8 |
05354-0525 | CHR 249 | Aa,Ab | 2010 | 12 | 294 | 0.4 | 5.05 | 8.28 | O9.5Vep | N D | 053522.90-052457.8 |
05354-0525 | CHR 249 | Aa,Ab | 2016 | 14 | 296 | 0.4 | 5.10 | 8.31 | O9.5Vep | N | 053522.88-052457.7 |
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 | Ab | Ac | B | Bb | C | Cb | D | |
Ab | pa=296.1° sep=0.42" | |||||||
Ac | pa=343.0° sep=0.00" | pa=116.0° sep=0.42" | ||||||
B | pa=93.3° sep=52.65" | pa=93.4° sep=53.04" | pa=93.3° sep=52.65" | |||||
Bb | pa=93.2° sep=52.58" | pa=93.4° sep=52.97" | pa=93.2° sep=52.58" | pa=315.7° sep=0.10" | ||||
C | pa=98.3° sep=129.04" | pa=98.4° sep=129.44" | pa=98.3° sep=129.04" | pa=101.8° sep=76.74" | pa=101.8° sep=76.82" | |||
Cb | pa=98.3° sep=129.00" | pa=98.4° sep=129.40" | pa=98.3° sep=129.00" | pa=101.8° sep=76.70" | pa=101.8° sep=76.78" | pa=285.6° sep=0.04" | ||
D | pa=314.7° sep=134.72" | pa=314.8° sep=134.32" | pa=314.7° sep=134.72" | pa=303.4° sep=177.64" | pa=303.4° sep=177.54" | pa=296.9° sep=250.58" | pa=296.9° sep=250.54" | |
E | pa=314.5° sep=135.19" | pa=314.6° sep=134.79" | pa=314.5° sep=135.19" | pa=303.3° sep=178.20" | pa=303.3° sep=178.10" | pa=296.9° sep=251.19" | pa=296.9° sep=251.15" | pa=266.2° sep=0.71" |
Name | The2 Ori | Coord arcsec 2000 | 053522.88-052457.7 | Mag | 5.03 | Spectral class | O9.5IV (blue) | ||||
PmRA | 2.00 | PmDE | 2.0 | SAO | 132321 | HIP | 26235 | ||||
Tycho2 | 4774-00933-1 | HD | 37041 | HR | 1897 | GC | 6935 | ||||
ADS | 4188 | BD | BD-05 1319 | Bayer | Theta 2 Orionis | Bayer name | The2 Ori | ||||
Flamsteed | 43 Orionis | Flamsteed name | 43 Ori |
Tycho2 | 4774-00933-1 | Pflag | RAmdeg | 83.84541789 | DEmdeg | -5.41605396 | |||||
PmRA | 3.7 | PmDE | 4.0 | E RAmdeg | 3 | E DEmdeg | 4 | ||||
E pmRA | 0.8 | E pmDE | 0.8 | EpRAm | 1991.63 | EpDEm | 1991.23 | ||||
Num | 15 | Q RAmdeg | 1.3 | Q DEmdeg | 1.0 | Q pmRA | 1.5 | ||||
Q pmDE | 1.1 | BTmag | 4.913 | E BTmag | 0.014 | VTmag | 5.027 | ||||
E VTmag | 0.009 | Prox | 524 | TYC | T | HIP | 26235 | ||||
CCDM | EN | RAdeg | 83.84540917 | DEdeg | -5.41606333 | EpRA 1990 | 1.83 | ||||
EpDE 1990 | 1.58 | E RAdeg | 3.3 | E DEdeg | 3.5 | Posflg | P | ||||
Corr | -0.2 |
SAO | 132321 | DelFlag | RA1950 | PmRA1950 | -0.0003 | ||||||
DE1950 | PmDE1950 | 0.005 | Vmag | 5.2 | SpType | B1 | |||||
Double code | Source | 70 | CatNum | 6935 | DM | BD-05 1319 | |||||
DMcomp | BDsup | HD | 37041 | M HD | 0 | ||||||
GC | 6935 | RA1950rad | 1.45265564 | DE1950rad | -0.09507546 | PmRA2000 | 0.0001 | ||||
PmDE2000 | 0.005 |
Catalog | H | HIP | 26235 | Proxy | H | RAhms | 05 35 22.90 | ||||
DEdms | -05 24 57.8 | Vmag | 4.98 | VarFlag | R Vmag | H | |||||
RAdeg | 83.8454 | DEdeg | -5.41606 | AstroRef | E | Plx | 1.72 | ||||
CCDM | 05353-0524 | N CCDM | I | Nsys | 4 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | B | M HIP | EN | |||||
Theta | 283 | Rho | 0.383 | HD | 37041 | BD | BD-05 1319 | ||||
CD | CP | Dm number | -05 1319 | VIred | 0.03 | ||||||
SpType | O9.5Vpe | R SpType | Coord arcsec 2000 | 053522.90-052457.8 |
HIP | 26235 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 1.4633785697 | DErad | -0.0945281431 | Plx | 2.11 | PmRA | 2.29 | ||||
PmDE | 0.96 | E RArad | 0.31 | E DErad | 0.24 | E Plx | 0.41 | ||||
E pmRA | 0.38 | E pmDE | 0.25 | Hpmag | 4.9953 | E Hpmag | 0.0006 | ||||
SHp | 0.006 | VA | 0 | BV | -0.097 | E BV | 0.014 | ||||
VI | 0.03 |
Coord arcsec 2000 | 053522.85-052457.5 | Mag | 8.31 | Calc delta mag | 3.21 | Calc coord | yes |
Coord arcsec 2000 | 053522.88-052457.7 | Mag | 5.7 | Calc delta mag | 0.6 | Calc coord | yes |
Coord arcsec 2000 | 053526.40-052500.7 | Coord calc | 053526.40-052500.7 | Mag | 6.19 | Spectral class | B3V (blue-white) | ||||
PmRA | 3.00 | PmDE | 2.0 | SAO | 132322 | Tycho2 | 4774-00934-1 | ||||
HD | 37042 | GC | 6936 | ADS | 4188 | DM | BD-05 1320 | ||||
Bayer | Theta 2 Orionis | Bayer name | The2 Ori | Calc delta mag | 1.09 |
Tycho2 | 4774-00934-1 | Pflag | RAmdeg | 83.86001090 | DEmdeg | -5.41686807 | |||||
PmRA | 2.7 | PmDE | 2.1 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 1.2 | E pmDE | 1.4 | EpRAm | 1991.57 | EpDEm | 1991.41 | ||||
Num | 12 | Q RAmdeg | 1.0 | Q DEmdeg | 1.2 | Q pmRA | 1.1 | ||||
Q pmDE | 1.1 | BTmag | 6.066 | E BTmag | 0.014 | VTmag | 6.193 | ||||
E VTmag | 0.010 | Prox | 524 | TYC | T | HIP | |||||
CCDM | RAdeg | 83.86000444 | DEdeg | -5.41687306 | EpRA 1990 | 1.83 | |||||
EpDE 1990 | 1.57 | E RAdeg | 3.7 | E DEdeg | 4.0 | Posflg | |||||
Corr | -0.2 |
SAO | 132322 | DelFlag | RA1950 | PmRA1950 | -0.0013 | ||||||
DE1950 | PmDE1950 | 0.03 | Vmag | 6.5 | SpType | B1 | |||||
Double code | Source | 70 | CatNum | 6936 | DM | BD-05 1320 | |||||
DMcomp | BDsup | HD | 37042 | M HD | 0 | ||||||
GC | 6936 | RA1950rad | 1.45290741 | DE1950rad | -0.09508266 | PmRA2000 | -0.0009 | ||||
PmDE2000 | 0.03 |
Coord arcsec 2000 | 053526.40-052500.6 | Mag | 10.6 | Spectral class | 5 | Calc delta mag | 5.5 | ||||
Calc coord | yes |
Coord arcsec 2000 | 053531.43-052516.4 | Coord calc | 053531.36-052516.0 | Mag | 7.5 | Mag composta | 8.46 | ||||
Spectral class | B5V (blue-white) | PmRA | 3.00 | PmDE | 2.0 | Calc delta mag | 2.4 |
Coord arcsec 2000 | 053531.43-052516.4 | Mag | 9.9 | Spectral class | A (white) | Calc delta mag | 4.8 | ||||
Calc coord | yes |
Coord arcsec 2000 | 053516.47-052322.9 | Coord calc | 053516.47-052322.9 | Mag | 11.2 | Spectral class | M2 (red) | ||||
PmRA | -1.00 | PmDE | 0.0 | HIP | 26221 | HR | 1895 | ||||
GC | 6931 | ADS | 4188 | BD | BD-05 1315 | Flamsteed | 41 Orionis | ||||
Flamsteed name | 41 Ori | Calc delta mag | 6.1 |
Catalog | H | HIP | 26221 | Proxy | RAhms | 05 35 16.47 | |||||
DEdms | -05 23 22.9 | Vmag | 5.13 | VarFlag | R Vmag | G | |||||
RAdeg | 83.8186 | DEdeg | -5.3897 | AstroRef | A | Plx | -1.85 | ||||
CCDM | 05353-0524 | N CCDM | I | Nsys | 4 | Ncomp | 1 | ||||
MultFlag | C | Source | P | Qual | C | M HIP | |||||
Theta | Rho | HD | 37022 | BD | BD-05 1315 | ||||||
CD | CP | Dm number | -05 1315 | VIred | -0.01 | ||||||
SpType | O6pe | R SpType | Coord arcsec 2000 | 053516.47-052322.9 |
HIP | 26221 | Sn | 15 | So | 3 | Nc | 1 | ||||
RArad | 1.4629107026 | DErad | -0.0940679537 | Plx | -13 | PmRA | -4.13 | ||||
PmDE | 6.82 | E RArad | 3.82 | E DErad | 3.03 | E Plx | 5.05 | ||||
E pmRA | 4.79 | E pmDE | 3.25 | Hpmag | 4.6103 | E Hpmag | 0.0057 | ||||
SHp | 0.046 | VA | 0 | BV | 0.02 | E BV | 0.042 | ||||
VI | -0.01 |
Coord arcsec 2000 | 053516.42-052322.9 | Mag | 12.8 | Spectral class | M7 (red) | Calc delta mag | 7.7 | ||||
Calc coord | yes |