05407-0157 STF 774 BC

 
 
05h 40m 45.57s -01° 56' 35.6" P.A. 8.00 sep 59.8 mag 3.70,9.55 Sp B3V+A?
 
 
Coord 2000 05407-0157 Discov num STF 774 Comp BC Coord arcsec 2000 05 40 45.57 -01 56 35.6
Date first 1909 Date last 2002 Obs 3
Pa first 8 Pa last 8.3 P.A. Now (θ) 8.3°
Sep first 59.8 Sep last 59.77 Sep. Now (ρ) 59.77"
Mag pri 3.70 Mag sec 9.55 delta mag (ΔM) 5.85 Spectral class B3V+A? (blue-white/white)
Pri motion ra +004 Sec motion ra +003
Pri motion dec +003 Sec motion dec -003
Notes N (See Notes)
rPM=1.217
This double is not physical.
 
 
05407-0157 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 132444 05 40 46 -01 56 33 NOI 1 Aa,Ab 2021 25 244 0.0 2.00 4.20 2.20 Y
Show Alnitak 132444 05 40 46 -01 56 33 STF 774 AB 2021 261 166 2.4 1.88 3.70 1.82 Y
Show 132444 05 40 46 -01 56 33 STF 774 AC 2017 29 10 58.5 1.88 9.55 7.67
Show 05 40 46 -01 56 36 STF 774 BC 2002 3 8 59.8 3.70 9.55 5.85 <===
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Orion Tycho2 4771-01207-1 Gaia DR2 3216549528221605248
 
 
WDS 05407-0157 STF 774 BC : NOTES
 
 
discov_num notes refcode
STF 774 AB: zet Ori = 50 Ori = Alnitak. A premature orbit has been computed.
Spectral types of AB: O9.5Ibe and B0III.
Levato et al. (ApJS, 68, 319, 1988) and Fullerton (1990, PhD thesis, Lev1988
U. Toronto) report small RV variations (<35 km/sec), not confirmed. Ful1990
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Spectral type of Aa O9.5Ib, spectral type of Ab B0.5IV Opl2023
Both A and B components were observed and appeared to be single. Msn1998a
Classification of the B component is from Hoffleit & Warren (1991). Hof1991
AC: Star C (mag. about 9, 60") may be physical.
NOI 1 Aa,Ab: Combined spectroscopic/astrometric solution, using NPOI
interferometric measures with radial velocities from disentangled
spectra to determine first dynamical mass for an O-type supergiant.
Mass of the O9.5Ib primary is 24.8 +/- 5.6 Msun, that of the B0/1
secondary is 16.4 +/- 4.9 Msun. NOI2011
Aa,Ab: Hummel et al. (2013) calculated a combined interferometric/
spectroscopic orbit of zet Ori. Derived masses are 14.0 +/- 2.2 and
7.4 +/- 1.1 Msun; orbital parallax is 3.4 +/- 0.2 mas, but as this is
based on rather low velocity amplitudes, the photometric distance
(2.6 +0.4/-0.3 mas) is considered more robust. Based on photometric
distance, spectral types for Aa, Ab, and B are O9.5Iab, B1IV, and
B0III, respectively. Masses for Aa and Ab are 33 +/- 10 and 14 +/- 3
Msun, considerably larger than the dynamical values. Hmm2013
Intensity Interferometer Limb-darkened diameter 0.48 +/- 0.04 mas. HBr1974
Uniform disk diameter 0.546 +/- 0.029 mas,
Limb darkened diameter 0.485 +/- 0.019 mas,
Radius is 21.5 +/- 5.4 \rsun. CIA2018e
STF 774 AC: H 4 21. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
CIA2018e not j Gordon, K.D., Gies, D.R., Schaefer, G.H., Huber, D., Ireland, M. & Hillier, D.J. 2018ApJ...869...37G
CIA2018e ApJ 869, 37, 2018
Ful1990 - Fullerton, A.W. .
Ful1990 PhD thesis, Univ. of Toronto, 1990
HBr1974 - Hanbury Brown, R., Davis, J., & Allen, L.R. 1974MNRAS.167..121H
HBr1974 MNRAS 167, 121, 1974
Hmm2013 orb - Hummel, C.A., Rivinius, Th., Nieva, M.-F., Stahl, O., van Belle, G., & Zavala, R. 2013A&A...554A..52H
Hmm2013 A&A 554, A52, 2013 (also NOI2013)
Hof1991 - Hoffleit, D. & Jaschek, C. 1991bsc..book.....H
Hof1991 The Bright Star Catalogue, Fifth Revised Edition (preliminary version), 1991
Lev1988 - Levato, H., Morrell, N., Garcia, B., & Malaroda, S. 1988ApJS...68..319L
Lev1988 ApJS 68, 319, 1988
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
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
NOI2011 Kn - Rivinius, Th., Hummel, C.A., & Stahl, O. .
NOI2011 +orb Proc. IAU Symp 272, 2011
Opl2023 - Oplistilova, A., Mayer, P., Harmanec, P. et al. 2023A&A...672A..31O
Opl2023 A&A 672, A31, 2023
 
 
DISCOVERER
 
 
idgroup discov author
1 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
05407-0157 STF 774 BC 2002 3 8 59.8 3.70 9.55 B0 N 054045.50-015635.0

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WDS 05407-0157 STF 774 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 05407-0157 STF 774 BC : MEASURES
 
 
No records found.

 
 
WDS 05407-0157 : VIRTUAL EYEPIECE
 
 

05407-0157 STF 774A mag 1.88 05407-0157 NOI   1Ab mag 4.2 05407-0157 STF 774B sep 2.4 P.A. 161.90 mag 3.7 Sp B3V 05407-0157 STF 774C sep 58.5 P.A. 10.40 mag 9.55 Sp A? virtual eyepiece
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Radius:
Components only
 
 
WDS 05407-0157 : ALADIN DSS IMAGE @ 05h 40m 45.57s -01° 56' 35.6"
 
 
 
 
WDS 05407-0157 STF 774 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


05407-0157  STF 774BC distance=0' 05407-0157  NOI   1Aa,Ab (Alnitak) distance=1' 05407-0157  STF 774AB (Alnitak) distance=1' 05407-0157  STF 774AC (Alnitak) distance=1' 05415-0158  CVS1914 distance=12' 05416-0154  PAD   9Aa,Ab distance=13' 05416-0154  PAD  10Ba,Bb distance=13' 05416-0154  PAD  12Ca,Cb distance=14' 05416-0154  BCK   1Ea,Eb distance=14' 05416-0154  PAD  13Da,Db distance=14' 05416-0153  PAD  11AB distance=14' 05416-0153  BCK   2CD distance=14' 05416-0152  PAD  14 distance=14' 05416-0153  BCK   3Ea,Eb distance=14' 05416-0153  PAD  15Fa,Fb distance=14' 05417-0153  BCK   4 distance=14' 05417-0155  BCK   5BC distance=15' 05417-0155  BCK   5AB distance=15' 05417-0154  BCK   6AB distance=15' 05417-0154  BCK   6AC distance=15' 05417-0156  CHX  11CD distance=15' 05417-0156  PAD  16AB distance=15' 05418-0154  BCK   7 distance=16' 05418-0156  MGM2926 distance=16' 05418-0155  ALV   3 distance=16' 05419-0201  CVS 185 distance=18' 05396-0145  CVS 172 distance=21' 05419-0143  CVS 186AB distance=22' 05419-0143  CVS 186AC distance=22' 05414-0217  MGM2849 distance=23' 05395-0143  CVS1880AB distance=23' 05395-0143  CVS1880AC distance=23' 05405-0134  BAL 310 distance=24' 05416-0216  MGM2848 distance=24' 05417-0216  MGM2851 distance=25' 05416-0217  MGM2846 distance=25' 05391-0155  CVS 167 distance=26' 05403-0131  RST4786 distance=27' 05390-0151  CVS1851AB distance=27' 05390-0151  CVS1851AC distance=27' 05390-0151  CVS1851AD distance=27' 05390-0149  CVS1854 distance=27' 05399-0225  SKF2363 distance=31' 05391-0136  CVS1856 distance=33' 05386-0151  CVS1838AB distance=33' 05386-0151  CVS1838AC distance=33' 05398-0226  CAB  33 distance=34' 05390-0216  CAB  40 distance=34' 05385-0200  CVS1829AB distance=34' 05385-0200  CVS1829AC distance=34' 05430-0200  UC 1352 distance=34' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 05407-0157 STF 774 BC 8 59.8
Show Alnitak 05407-0157 NOI 1 Aa,Ab 244 0.0 1
Show Alnitak 05407-0157 STF 774 AB 166 2.4 1
Show Alnitak 05407-0157 STF 774 AC 10 58.5 1
Show 05415-0158 CVS1914 263 5.5 12
Show 05416-0154 PAD 9 Aa,Ab -1 0.8 13
Show 05416-0154 PAD 10 Ba,Bb -1 0.3 13
Show 05416-0154 PAD 12 Ca,Cb -1 0.2 14
Show 05416-0154 BCK 1 Ea,Eb 40 0.2 14
Show 05416-0154 PAD 13 Da,Db -1 0.9 14
Show 05416-0153 PAD 11 AB -1 2.0 14
Show 05416-0153 BCK 2 CD 25 1.9 14
Show 05416-0152 PAD 14 -1 0.4 14
Show 05416-0153 BCK 3 Ea,Eb 200 0.4 14
Show 05416-0153 PAD 15 Fa,Fb -1 0.5 14
Show 05417-0153 BCK 4 320 0.6 14
Show 05417-0155 BCK 5 BC 315 0.4 15
Show 05417-0155 BCK 5 AB 225 2.2 15
Show 05417-0154 BCK 6 AB 30 1.9 15
Show 05417-0154 BCK 6 AC 85 2.0 15
Show 05417-0156 CHX 11 CD 112 4.1 15
Show 05417-0156 PAD 16 AB -1 2.0 15
Show 05418-0154 BCK 7 320 1.0 16
Show 05418-0156 MGM2926 252 0.6 16
Show 05418-0155 ALV 3 284 4.7 16
Show 05419-0201 CVS 185 190 2.4 18
Show 05396-0145 CVS 172 332 6.9 21
Show 05419-0143 CVS 186 AB 81 4.2 22
Show 05419-0143 CVS 186 AC 212 19.7 22
Show 05414-0217 MGM2849 346 1.2 23
Show 05395-0143 CVS1880 AB 259 6.9 23
Show 05395-0143 CVS1880 AC 108 7.0 23
Show 05405-0134 BAL 310 65 5.2 24
Show 05416-0216 MGM2848 180 0.3 24
Show 05417-0216 MGM2851 255 2.3 25
Show 05416-0217 MGM2846 253 2.4 25
Show 05391-0155 CVS 167 182 5.2 26
Show 05403-0131 RST4786 101 0.6 27
Show 05390-0151 CVS1851 AB 95 5.2 27
Show 05390-0151 CVS1851 AC 349 7.3 27
Show 05390-0151 CVS1851 AD 26 14.7 27
Show 05390-0149 CVS1854 349 18.1 27
Show 05399-0225 SKF2363 4 2.1 31
Show 05391-0136 CVS1856 168 19.6 33
Show 05386-0151 CVS1838 AB 50 2.2 33
Show 05386-0151 CVS1838 AC 4 16.4 33
Show 05398-0226 CAB 33 220 2.7 34
Show 05390-0216 CAB 40 56 2.7 34
Show 05385-0200 CVS1829 AB 159 0.7 34
Show 05385-0200 CVS1829 AC 270 5.0 34
Show 05430-0200 UC 1352 23 7.8 34

 
 
WDS 05407-0157 : COMPONENTS
 
 
  A Ab B
Ab pa=244.4°
sep=0.04"
 
B pa=161.9°
sep=2.42"
pa=161.0°
sep=2.41"
 
C pa=10.4°
sep=58.46"
pa=10.4°
sep=58.48"
pa=9.3°
sep=60.60"
 
 
05407-0157 A
 
 
Common name Alnitak Meaning belt Other names ALNITAH Coord arcsec 2000 054045.52-015633.3
Mag 1.88 PmRA 4.00 PmDE 3.0 SAO 132444
HIP 26727 Tycho2 4771-01188-1 HD 37742 HR 1948
GC 7089 BD BD-02 1338 Bayer Zeta Orionis Bayer name Zet Ori
Flamsteed 50 Orionis Flamsteed name 50 Ori
SAO
SAO 132444 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 -0.002 Vmag 2 SpType B0
Double code Source 71 CatNum 1631 DM BD-02 1338
DMcomp BDsup HD 37742 M HD 9
GC 7089 RA1950rad 1.47582449 DE1950rad -0.03433925 PmRA2000 0.0002
PmDE2000 -0.002
Hipparcos
Catalog H HIP 26727 Proxy H RAhms 05 40 45.52
DEdms -01 56 33.3 Vmag 1.74 VarFlag R Vmag H
RAdeg 85.1897 DEdeg -1.94258 AstroRef A Plx 3.99
CCDM 05408-0156 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 164 Rho 2.419 HD 37742 BD BD-02 1338
CD CP Dm number -02 1338 VIred -0.18
SpType O9.5Ib SB R SpType Coord arcsec 2000 054045.52-015633.3
Hipparcos 2
HIP 26727 Sn 15 So 3 Nc 2
RArad 1.4868405212 DErad -0.0339043911 Plx 4.43 PmRA 3.19
PmDE 2.03 E RArad 0.52 E DErad 0.25 E Plx 0.64
E pmRA 0.59 E pmDE 0.26 Hpmag 1.6812 E Hpmag 0.0011
SHp 0.009 VA 0 BV -0.199 E BV 0.022
VI -0.18
 
 
05407-0157 Ab
 
 
Coord arcsec 2000 054045.52-015633.3 Mag 4.2 Calc delta mag 2.2 Calc coord yes
 
 
05407-0157 B
 
 
Coord arcsec 2000 054045.57-015635.6 Coord calc 054045.57-015635.6 Mag 3.7 Spectral class B3V (blue-white)
PmRA 4.00 PmDE 3.0 Calc delta mag 1.7
 
 
05407-0157 C
 
 
Coord arcsec 2000 054046.22-015535.8 Mag 9.55 Spectral class A? (white) PmRA 3.00
PmDE -3.0 Tycho2 4771-01207-1 Calc delta mag 7.55 Calc coord yes
Tycho2
Tycho2 4771-01207-1 Pflag RAmdeg 85.19236431 DEmdeg -1.92677841
PmRA 2.2 PmDE -4.7 E RAmdeg 12 E DEmdeg 21
E pmRA 0.9 E pmDE 1.0 EpRAm 1989.78 EpDEm 1985.59
Num 7 Q RAmdeg 2.2 Q DEmdeg 2.9 Q pmRA 2.2
Q pmDE 2.7 BTmag 9.675 E BTmag 0.027 VTmag 9.553
E VTmag 0.028 Prox 577 TYC T HIP
CCDM RAdeg 85.19236028 DEdeg -1.92676417 EpRA 1990 1.81
EpDE 1990 1.21 E RAdeg 11.8 E DEdeg 21.5 Posflg
Corr 0.3