Coord 2000 | 16544-4150 | Discov num | HJ 4893 | Comp | AB | Coord arcsec 2000 | 16 54 25.95 -41 49 55.8 | ||||
Date first | 1897 | Date last | 2022 | Obs | 11 | ||||||
Pa first | 51 | Pa last | 51.8 | P.A. Now (θ) | 51.8° | ||||||
Sep first | 7.8 | Sep last | 7.33 | Sep. Now (ρ) | 7.33" | ||||||
Mag pri | 7.44 | Mag sec | 9.60 | delta mag (ΔM) | 2.16 | Spectral class | B (blue-white) | ||||
Pri motion ra | -015 | Sec motion ra | -004 | ||||||||
Pri motion dec | -009 | Sec motion dec | +000 | ||||||||
Notes | N (See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | HD 326331 | 16 54 26 -41 49 56 | HJ 4893 AB | 2022 | 11 | 52 | 7.3 | 7.44 | 9.60 | 2.16 | <=== | ||
Show | 16 54 26 -41 49 56 | SNA 55 AC | 2011 | 1 | 40 | 1.1 | 6.93 | 12.92 | 5.99 | ||||
Show | 16 54 26 -41 49 56 | SNA 55 AD | 2015 | 2 | 326 | 3.4 | 6.93 | 12.63 | 5.70 |
Name | HD 326331 | Constellation | Scorpius | Tycho2 | 7876-02319-1 | Gaia DR2 | 5966509267005564288 | ||||
HD | 326331 |
discov_num | notes | refcode |
SNA 55 | Reported as a broad-line fast rotator with line profile variability | |
(Sana at al. 2008b) and as SB2, we detected two visual companions at | Sna2008b | |
1.1 and 3.4". The 7.3" AB companion reported by Mason et al. (1998) | Msn1998a | |
may lie outside our FOV. See further discussion by Sana et al. (2014) | Sna2014 |
refcode | metd | author | reference |
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 | ||
Sna2008b | not - | Sana, H., Naze, Y., O'Donnell, B., Rauw, G., & Gosset, E. | 2008NewAst.13..202S |
Sna2008b | New Astron. 13, 202, 2008 | ||
Sna2014 | Kv j | Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L., | 2014ApJS..215...15S |
Sna2014 | +A | Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A., | |
Sna2014 | Kratter, K., Schnurr, O., & Zinnecker, H. | ||
Sna2014 | ApJS 215, 15, 2014 | ||
Sna2014 | (NACO companions in Table 6 assumed physical if quoted probability of spurious | ||
Sna2014 | detection <10%, optical if >90%, otherwise indeterminate) |
idgroup | discov | author |
1 | HJ | Herschel, J.F.W. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
16544-4150 | HJ 4893 | AB | 2013 | 8 | 51 | 7.0 | 7.44 | 9.60 | B | D | 165425.95-414955.8 |
16544-4150 | HJ 4893 | AB | 2016 | 9 | 53 | 7.0 | 7.44 | 9.60 | B | N | 165425.95-414955.8 |
16544-4150 | HJ 4893 | AB | 2022 | 11 | 52 | 7.3 | 7.44 | 9.60 | B | N | 165425.95-414955.8 |
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 | |
B | pa=43.4° sep=6.24" | ||
C | pa=32.4° sep=1.02" | pa=225.6° sep=5.25" | |
D | pa=333.1° sep=3.15" | pa=253.3° sep=5.97" | pa=314.7° sep=2.78" |
Name | HD 326331 | Coord arcsec 2000 | 165425.95-414955.8 | Mag | 7.44 | Spectral class | B (blue-white) | ||||
PmRA | -15.00 | PmDE | -9.0 | Tycho2 | 7876-02319-1 | HD | 326331 |
Tycho2 | 7876-02319-1 | Pflag | RAmdeg | 253.60815874 | DEmdeg | -41.83219245 | |||||
PmRA | -16.2 | PmDE | -13.3 | E RAmdeg | 6 | E DEmdeg | 6 | ||||
E pmRA | 1.6 | E pmDE | 1.3 | EpRAm | 1991.31 | EpDEm | 1991.05 | ||||
Num | 5 | Q RAmdeg | 5.0 | Q DEmdeg | 3.7 | Q pmRA | 4.8 | ||||
Q pmDE | 3.6 | BTmag | 7.574 | E BTmag | 0.016 | VTmag | 7.440 | ||||
E VTmag | 0.012 | Prox | 829 | TYC | T | HIP | |||||
CCDM | RAdeg | 253.60820833 | DEdeg | -41.83216222 | EpRA 1990 | 1.65 | |||||
EpDE 1990 | 1.65 | E RAdeg | 5.6 | E DEdeg | 5.8 | Posflg | |||||
Corr | 0.0 |
Ccdm | 16544-4150 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | 1.94 | DDEs | 3.5 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 8.0 | Sp | B | PmNote | * | ||||
PmRA | -9 | PmDE | -3 | Dm number | -4111044 | Cat1 | CD | ||||
Name2 | 227393 | Cat2 | SAO | HD | M HD | ||||||
ADS BDS | M ADS BDS | N IDS | IDS | 16474S4140A | |||||||
HIC |
Coord arcsec 2000 | 165426.33-414951.3 | Mag | 9.6 | PmRA | -4.00 | PmDE | 0.0 | ||||
Calc delta mag | 2.16 | Calc coord | yes |
Ccdm | 16544-4150 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | HJ 4893 | DRAs | 2.52 | DDEs | 7.2 | |||||
R dRAs | 10 | Year | 1897 | Theta | 052 | Rho | 7.3 | ||||
Obs | 3 | Vmag | 10.0 | Sp | PmNote | * | |||||
PmRA | 6 | PmDE | -20 | Dm number | Cat1 | ||||||
Name2 | 227394 | Cat2 | SAO | HD | M HD | ||||||
ADS BDS | M ADS BDS | N IDS | IDS | 16474S4140B | |||||||
HIC |
Coord arcsec 2000 | 165426.00-414954.9 | Mag | 12.92 | Calc delta mag | 5.48 | Calc coord | yes |
Coord arcsec 2000 | 165425.82-414953.0 | Mag | 12.63 | Calc delta mag | 5.19 | Calc coord | yes |