05245-0224 DA 5 AB (Algjebba)
05h 24m 28.73s -02° 23' 49.3" P.A. 79.00 sep 1.8 mag 3.56,4.87 Sp B1V+B2e dist. 299.4 pc (976.64 l.y.)
Coord 2000 |
05245-0224 |
|
Discov num |
DA 5 |
|
Comp |
AB |
|
Coord arcsec 2000 |
05 24 28.73 -02 23 49.3 |
|
Date first |
1848 |
|
Date last |
2021 |
|
Obs |
250 |
|
Pa first |
87 |
|
Pa last |
79 |
|
P.A. Now (θ) |
79° |
|
Sep first |
0.9 |
|
Sep last |
1.8 |
|
Sep. Now (ρ) |
1.8" |
|
Mag pri |
3.56 |
|
Mag sec |
4.87 |
|
delta mag (ΔM) |
1.31 |
|
Spectral class |
B1V+B2e (blue-white/blue-white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
-001 |
|
Pri motion dec |
-002 |
|
Sec motion dec |
-003 |
|
Notes |
N
L
(See Notes, Linear solution) |
|
rPM=1.144
This double is not physical.
05245-0224 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
132071 |
05 24 29 -02 23 49 |
MCA 18 Aa,Ab |
2019 |
30 |
138 |
0.0 |
3.60 |
5.30 |
1.70 |
Y |
|
Show |
Algjebba |
132071 |
05 24 29 -02 23 49 |
DA 5 AB |
2021 |
250 |
79 |
1.8 |
3.56 |
4.87 |
1.31 |
|
<=== |
Show |
|
132071 |
05 24 29 -02 23 49 |
H 6 67 AC |
2017 |
8 |
51 |
114.3 |
3.56 |
10.99 |
7.43 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Common name |
Algjebba |
|
Constellation |
Orion |
|
SAO |
132071 |
|
HIP |
25281 |
|
Tycho2 |
4757-01588-1 |
|
Gaia DR2 |
3214077516844988800 |
|
HD |
35411 |
|
HR |
1788 |
|
GC |
6655 |
|
ADS |
4002 |
|
BD |
BD-02 1235 |
|
Bayer |
Eta Orionis |
|
Bayer name |
Eta Ori |
|
Flamsteed |
28 Orionis |
|
Flamsteed name |
28 Ori |
|
Distance |
299.4 |
|
Distance ly |
976.64 |
|
Bayer greek |
η Ori |
|
WDS 05245-0224 DA 5 AB (Algjebba) : NOTES
discov_num |
notes |
refcode |
MCA 18 |
eta Ori = 28 Ori. Quintuple; primary is a double-lined spectroscopic |
|
|
triple with periods 7.99 d (Aa1,Aa2) and 9.2 yr (Aa,Ab). The close |
|
|
pair eclipses, and shows an 8-hour pulsation in one of the components. |
|
|
Aa is also eclipsing binary (period 7.9904 day). |
Zas2010 |
|
Aa,Ab. McAlister (1976) orbit uses the elements P, T, e, and the |
McA1976 |
|
longitude of periastron for the 9-year orbit, from a spectroscopic |
|
|
orbit by Ziska & Beardsley (1981), and assumes the orbit is edge-on; |
Bey1981 |
|
semi-major axis and node are based on a single speckle observation. |
|
|
The ascending node has been reversed. |
|
|
The visual companions are star B (mag. 4.8, 1.5") in slow retrograde |
|
|
motion, and C (mag. 9.4, 115"). |
|
|
See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
|
1985.8542: This measurement of the Aab,c component of eta Ori, |
|
|
overlooked in the original analysis of this run, was discovered during |
|
|
preparation of a paper on absolute quadrant determinations by Bagnuolo |
Bgn1992 |
|
et al. (1992) |
Hrt1992b |
|
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and |
|
|
spectroscopic masses 25.82 +/- 24.95, 24.50, 22.65 Msun, respectively. |
Mlk2012 |
DA 5 |
AB: Rectilinear solution by Hartkopf et al. (2012). |
Hrt2012a |
MCA 18 |
Aa,Ab has an SB1 orbit with P=9.44yr. The orbit given here uses only |
|
|
the speckle data, however. |
Tok2015c |
H 6 67 |
H VI 67. |
|
REFERENCES
refcode |
metd |
author |
reference |
Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
Baz1989d |
|
A&AS 77, 497, 1989 |
|
Bey1981 |
- |
Ziska, E.R. & Beardsley, W.R. |
1981AJ.....86.1944Z |
Bey1981 |
|
AJ 86, 1944, 1981 |
|
Bgn1992 |
orb - |
Bagnuolo, W.G., Mason, B.D., Barry, D., Hartkopf, W., & McAlister, H.A. |
1992AJ....103.1399B |
Bgn1992 |
|
AJ 103, 1399, 1992 |
|
Hrt1992b |
Sc j |
Hartkopf, W.I., McAlister, H.A., & Franz, O.G. |
1992AJ....104..810H |
Hrt1992b |
|
AJ 104, 810, 1992 |
|
Hrt2012a |
orb - |
Hartkopf, W.I., Tokovinin, A., & Mason, B.D. |
2012AJ....143...42H |
Hrt2012a |
+lin |
AJ 143, 42, 2012 |
|
McA1976 |
orb - |
McAlister, H.A. |
1976PASP...88..957M |
McA1976 |
|
PASP 88, 957, 1976 |
|
Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
Mlk2012 |
|
A&A 546, A69, 2012 |
|
Tok2015c |
orb+j |
Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. |
2015AJ....150...50T |
Tok2015c |
+St |
AJ 150, 50, 2015 (some measures corrected in Tok2017b) |
2017AJ....154..110T |
Zas2010 |
- |
Zasche, P. |
................... |
Zas2010 |
|
private communication, 2010 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
DA |
Dawes, W.R. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
05245-0224 |
DA 5 |
AB |
2006 |
224 |
78 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
D |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2009 |
226 |
77 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
D |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2010 |
232 |
78 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
N D |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2011 |
234 |
77 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
N D |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2012 |
235 |
78 |
1.8 |
3.56 |
4.87 |
B1V B2e |
NLD |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2013 |
238 |
77 |
1.8 |
3.56 |
4.87 |
B1V B2e |
NLD |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2015 |
240 |
77 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
NLD |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2017 |
246 |
77 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
NL |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2018 |
247 |
77 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
NL |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2019 |
248 |
77 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
NL |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2020 |
249 |
77 |
1.9 |
3.56 |
4.87 |
B1V+B2e |
NL |
052428.62-022349.7 |
05245-0224 |
DA 5 |
AB |
2021 |
250 |
79 |
1.8 |
3.56 |
4.87 |
B1V+B2e |
NL |
052428.73-022349.3 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 05245-0224 DA 5 AB (Algjebba) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 05245-0224 DA 5 AB (Algjebba) : MEASURES
No records found.
WDS 05245-0224 (Algjebba) : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 05245-0224 (Algjebba) : ALADIN DSS IMAGE @ 05h 24m 28.73s -02° 23' 49.3"
WDS 05245-0224 DA 5 AB (Algjebba) : NEIGHBORHOODS
|
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 |
Algjebba |
05245-0224 |
MCA 18 |
Aa,Ab |
138 |
0.0 |
1 |
Show |
Algjebba |
05245-0224 |
DA 5 |
AB |
79 |
1.8 |
1 |
Show |
Algjebba |
05245-0224 |
H 6 67 |
AC |
51 |
114.3 |
1 |
Show |
|
05247-0230 |
BU 556 |
|
244 |
0.8 |
7 |
Show |
|
05235-0202 |
BAL 39 |
|
297 |
3.6 |
25 |
Show |
|
05262-0223 |
TOB9005 |
|
314 |
2.9 |
26 |
Show |
|
05261-0216 |
BU 1396 |
|
20 |
4.3 |
27 |
Show |
|
05250-0249 |
H 6 68 |
AB |
282 |
135.6 |
27 |
Show |
|
05250-0249 |
BAG 42 |
Aa,Ab |
263 |
0.1 |
27 |
Show |
|
05253-0158 |
CVS 33 |
|
46 |
2.1 |
29 |
Show |
|
05261-0209 |
CVS 840 |
|
199 |
0.2 |
29 |
Show |
|
05256-0255 |
SKF2216 |
|
70 |
2.4 |
36 |
Show |
|
05263-0220 |
DOO 33 |
|
238 |
7.2 |
43 |
Show |
|
05217-0203 |
STF 693 |
|
11 |
3.5 |
47 |
Show |
|
05245-0135 |
CVR 456 |
|
81 |
10.4 |
50 |
Show |
|
05253-0126 |
J 327 |
|
285 |
4.1 |
58 |
Show |
|
05239-0123 |
J 326 |
|
249 |
3.2 |
62 |
Show |
|
05282-0156 |
HJ 702 |
|
149 |
24.2 |
63 |
Show |
|
05203-0241 |
A 2804 |
|
71 |
1.2 |
65 |
Show |
|
05277-0137 |
BAL 306 |
|
207 |
17.9 |
67 |
Show |
|
05205-0301 |
RST4273 |
|
39 |
0.7 |
70 |
Show |
|
05275-0129 |
J 328 |
|
147 |
2.2 |
72 |
Show |
|
05258-0115 |
CVS 806 |
|
|
19.4 |
73 |
Show |
|
05291-0201 |
D 8 |
CD |
352 |
17.1 |
73 |
Show |
|
05291-0201 |
D 8 |
AB |
48 |
5.7 |
74 |
Show |
|
05291-0201 |
D 8 |
AC |
294 |
101.7 |
74 |
Show |
|
05273-0123 |
CVS 938 |
AB |
358 |
11.7 |
75 |
Show |
|
05273-0123 |
CVS 938 |
AC |
289 |
13.2 |
75 |
Show |
|
05282-0131 |
DAM 749 |
|
321 |
11.9 |
77 |
Show |
|
05289-0146 |
A 849 |
|
111 |
0.7 |
77 |
Show |
|
05281-0128 |
CVS1020 |
|
14 |
12.8 |
79 |
Show |
|
05276-0121 |
CVS 969 |
|
74 |
11.0 |
79 |
Show |
|
05260-0108 |
CVS 832 |
|
158 |
16.3 |
80 |
Show |
|
05284-0129 |
CVS 52 |
|
169 |
7.4 |
81 |
Show |
|
05194-0303 |
DAM1331 |
|
128 |
3.4 |
86 |
Show |
|
05289-0318 |
DA 6 |
|
298 |
0.2 |
87 |
Show |
|
05285-0122 |
CVS1055 |
|
35 |
6.0 |
87 |
Show |
|
05290-0128 |
CVS1122 |
AB |
336 |
5.6 |
89 |
Show |
|
05290-0128 |
CVS1122 |
AC |
126 |
5.9 |
89 |
Show |
|
05192-0304 |
A 53 |
AB |
294 |
1.7 |
89 |
Show |
|
05192-0304 |
A 53 |
AC |
202 |
228.7 |
89 |
Show |
|
05192-0304 |
LSC 134 |
AD |
288 |
1.9 |
89 |
Show |
|
05192-0304 |
A 53 |
Ba,Bb |
223 |
0.4 |
89 |
Show |
|
05284-0330 |
BUP 80 |
|
206 |
40.9 |
89 |
Show |
|
05291-0128 |
CVS1129 |
|
95 |
2.7 |
89 |
Show |
|
05295-0135 |
CVS1168 |
|
219 |
16.7 |
90 |
Show |
|
05278-0109 |
CVS 991 |
|
232 |
15.2 |
90 |
Show |
|
05303-0247 |
J 7 |
|
214 |
1.9 |
91 |
Show |
|
05296-0135 |
CVS 65 |
AB |
155 |
1.5 |
91 |
Show |
|
05296-0135 |
CVS 65 |
AC |
29 |
8.2 |
91 |
Show |
|
05280-0110 |
CVS1003 |
|
93 |
6.0 |
92 |
|
|
WDS 05245-0224 : COMPONENTS
|
A |
Ab |
B |
Ab |
pa=138.3°
sep=0.03"
| |
B |
pa=79.0°
sep=1.80"
| pa=78.2°
sep=1.78"
| |
C |
pa=51.4°
sep=114.24"
| pa=51.4°
sep=114.24"
| pa=51.0°
sep=112.65"
|
05245-0224 A
Common name |
Algjebba |
|
Meaning |
before |
|
Coord arcsec 2000 |
052428.73-022349.3 |
|
Mag |
3.56 |
|
Spectral class |
B1V (blue-white) |
|
PmRA |
3.00 |
|
PmDE |
-2.0 |
|
SAO |
132071 |
|
HIP |
25281 |
|
Tycho2 |
4757-01588-1 |
|
HD |
35411 |
|
HR |
1788 |
|
GC |
6655 |
|
BD |
BD-02 1235 |
|
Bayer |
Eta Orionis |
|
Bayer name |
Eta |
|
Flamsteed |
28 Orionis |
|
Flamsteed name |
28 Ori |
|
Tycho2 |
4757-01588-1 |
|
Pflag |
X |
|
RAmdeg |
|
|
DEmdeg |
|
|
PmRA |
|
|
PmDE |
|
|
E RAmdeg |
|
|
E DEmdeg |
|
|
E pmRA |
|
|
E pmDE |
|
|
EpRAm |
|
|
EpDEm |
|
|
Num |
|
|
Q RAmdeg |
|
|
Q DEmdeg |
|
|
Q pmRA |
|
|
Q pmDE |
|
|
BTmag |
3.367 |
|
E BTmag |
0.014 |
|
VTmag |
3.564 |
|
E VTmag |
0.009 |
|
Prox |
17 |
|
TYC |
T |
|
HIP |
25281 |
|
CCDM |
A |
|
RAdeg |
81.11923861 |
|
DEdeg |
-2.39713694 |
|
EpRA 1990 |
1.83 |
|
EpDE 1990 |
1.73 |
|
E RAdeg |
3.2 |
|
E DEdeg |
3.4 |
|
Posflg |
D |
|
Corr |
-0.1 |
|
SAO |
132071 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0002 |
|
DE1950 |
|
|
PmDE1950 |
0.001 |
|
Vmag |
3.4 |
|
SpType |
B1 |
|
Double code |
|
|
Source |
71 |
|
CatNum |
200 |
|
DM |
BD-02 1235 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
35411 |
|
M HD |
0 |
|
GC |
6655 |
|
RA1950rad |
1.40482102 |
|
DE1950rad |
-0.04261309 |
|
PmRA2000 |
0.0001 |
|
PmDE2000 |
0 |
|
Catalog |
H |
|
HIP |
25281 |
|
Proxy |
H |
|
RAhms |
05 24 28.62 |
|
DEdms |
-02 23 49.7 |
|
Vmag |
3.35 |
|
VarFlag |
2 |
|
R Vmag |
G |
|
RAdeg |
81.1192 |
|
DEdeg |
-2.39714 |
|
AstroRef |
A |
|
Plx |
3.62 |
|
CCDM |
05245-0223 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
78 |
|
Rho |
1.695 |
|
HD |
35411 |
|
BD |
BD-02 1235 |
|
CD |
|
|
CP |
|
|
Dm number |
-02 1235 |
|
VIred |
-0.16 |
|
SpType |
B1V + B2 |
|
R SpType |
|
|
Coord arcsec 2000 |
052428.62-022349.7 |
|
HIP |
25281 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
1.415797791 |
|
DErad |
-0.0418379705 |
|
Plx |
3.34 |
|
PmRA |
-0.71 |
|
PmDE |
-3.46 |
|
E RArad |
0.87 |
|
E DErad |
0.69 |
|
E Plx |
1.07 |
|
E pmRA |
1.13 |
|
E pmDE |
0.85 |
|
Hpmag |
3.2919 |
|
E Hpmag |
0.0059 |
|
SHp |
0.061 |
|
VA |
1 |
|
BV |
-0.24 |
|
E BV |
0.16 |
|
VI |
-0.16 |
|
05245-0224 Ab
Coord arcsec 2000 |
052428.73-022349.3 |
|
Mag |
5.3 |
|
Spectral class |
B2e (blue-white) |
|
Calc delta mag |
1.7 |
|
Calc coord |
yes |
|
05245-0224 B
Coord arcsec 2000 |
052428.85-022349.0 |
|
Mag |
4.87 |
|
Spectral class |
B2e (blue-white) |
|
PmRA |
-1.00 |
|
PmDE |
-3.0 |
|
Calc delta mag |
1.27 |
|
Calc coord |
yes |
|
05245-0224 C
Coord arcsec 2000 |
052434.69-022238.0 |
|
Mag |
10.99 |
|
Spectral class |
B2e (blue-white) |
|
PmRA |
-1.00 |
|
PmDE |
3.0 |
|
Calc delta mag |
7.39 |
|
Calc coord |
yes |
|