Coord 2000 | 18170-1858 | Discov num | SNA 85 | Comp | AC | Coord arcsec 2000 | 18 16 58.56 -18 58 05.1 | ||||
Date first | 2012 | Date last | 2012 | Obs | 1 | ||||||
Pa first | 88 | Pa last | 87.9 | P.A. Now (θ) | 87.9° | ||||||
Sep first | 5.1 | Sep last | 5.11 | Sep. Now (ρ) | 5.11" | ||||||
Mag pri | 6.67 | Mag sec | 12.57 | delta mag (ΔM) | 5.9 | Spectral class | O7II-III (blue) | ||||
Pri motion ra | +000 | Sec motion ra | |||||||||
Pri motion dec | -002 | Sec motion dec | |||||||||
Notes | N K (See Notes, K-band or other infrared magnitudes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 161255 | 18 16 59 -18 58 05 | SNA 85 Aa,Ab | 2012 | 2 | 265 | 0.0 | 6.80 | 9.30 | 2.50 | |||
Show | 161255 | 18 16 59 -18 58 05 | MZA 23 AB | 2009 | 4 | 227 | 17.5 | 7.40 | 13.50 | 6.10 | |||
Show | 161255 | 18 16 59 -18 58 05 | SNA 85 AC | 2012 | 1 | 88 | 5.1 | 6.67 | 12.57 | 5.90 | <=== | ||
Show | 161255 | 18 16 59 -18 58 05 | SNA 85 AD | 2012 | 1 | 247 | 5.8 | 6.67 | 13.63 | 6.96 | |||
Show | 161255 | 18 16 59 -18 58 05 | SNA 85 AE | 2012 | 1 | 58 | 7.3 | 6.67 | 14.01 | 7.34 |
Constellation | Sagittarius | SAO | 161255 | Tycho2 | 6273-00422-1 | Gaia DR2 | 4094790350826867584 | ||||
HD | 167659 |
discov_num | notes | refcode |
SNA 85 | Aa,Ab: Both NACO/SAM and PIONIER resolved the A componnet as a 50mas | |
pair, which probably corresponds to the 80mas pair detected through | Rad1980 | |
occultation (Radick & Lien 1980). The object may further be an SB1 | ||
(Gamen et al. 2008, RevMexAA 33, 54) | Sna2014 | |
HD 167659 | Hilt 730. The 3 speckle observations all indicate a single star, so we | |
cannot confirm the existence of a companion found by lunar occultation | Msn1998a | |
(Radick & Lien 1980). | Rad1980 |
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 | ||
Rad1980 | O j | Radick, R.R. & Lien, D. | 1980AJ.....85.1053R |
Rad1980 | AJ 85, 1053, 1980 | ||
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 | MZA | Maiz-Apellaniz, J., Walborn, N.R., Morrell, N.I., Niemela, V.S., & Nelan, E.P. |
4 | MZA | Maiz-Apellaniz, J., Negueruela, I., Barba, R.H., Walborn, N.R., Pellerin, A., |
4 | MZA | Simon-Diaz, S., Sota, A., Marco, A., Alonso-Santiago, J., Sanchez-Bermudez, J., |
4 | MZA | Gamen, R.C., & Lorenzo, J. |
5 | MZA | Maiz-Apellaniz, J., Sota, A., Arias, J.I., Barba, R.H., Walborn, N.R., Simon-Diaz, |
5 | MZA | S., Negueruela, I., Marco, A., Leao, J.R., Herrero, A., Gamen, R.C. & Alfaro, E.J. |
7 | MZA | Maiz-Apellaniz, J., Barba, R.H., Simon-Diaz, S., Sota, A., Trigueros Paez, E., |
7 | MZA | Caballero, J.A. & Alfaro, E.J. |
9 | MZA | Maiz Apellaniz, J., Trigueros Paez, E., Negueruela, I., Barba, R.H., Simon-Diaz, |
9 | MZA | S., Lorenzo, J., Sota, A., Gamen, R.C., Farina, C., Salas, J., Caballero, J.A., |
9 | MZA | Morrell, N.I., Pellerin, A., Alfaro, E.J., Herrero, A., Arias, J.I. & Marco, A. |
13 | MZA | Maiz Apellaniz, J., Trigueros Paez, E., Negueruela, I., Barba, R.H., Simon-Diaz, |
13 | MZA | S., Lorenzo, J., Sota, A., Gamen, R.C., Farina, C., Salas, J., Caballero, J.A., |
13 | MZA | Morrell, N.I., Pellerin, A., Alfaro, E.J., Herrero, A., Arias, J.I. & Marco, A. |
14 | MZA | Maiz Apellaniz, J., Barba, R.H., Farina, C., Sota, A., Pantaleoni Gonzalez, M., |
14 | MZA | Holgado, G., Negueruela, I. & Simon-Diaz, S. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
18170-1858 | SNA 85 | AC | 2012 | 1 | 88 | 5.1 | 6.67 | 12.57 | O7II-III | N K | 181658.56-185805.1 |
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 | B | C | D | |
Ab | pa=264.9° sep=0.04" | ||||
B | pa=225.1° sep=17.03" | pa=225.0° sep=17.00" | |||
C | pa=87.8° sep=4.83" | pa=87.8° sep=4.88" | pa=54.1° sep=20.85" | ||
D | pa=245.9° sep=5.51" | pa=245.8° sep=5.47" | pa=35.7° sep=12.04" | pa=256.1° sep=10.16" | |
E | pa=56.1° sep=7.02" | pa=56.3° sep=7.06" | pa=48.3° sep=23.96" | pa=15.0° sep=3.86" | pa=60.4° sep=12.49" |
Coord arcsec 2000 | 181658.56-185805.1 | Mag | 7.4 | Spectral class | B8Ib (blue-white) | PmRA | 0.00 | ||||
PmDE | -2.0 | SAO | 161255 | Tycho2 | 6273-00422-1 | HD | 167659 | ||||
DM | BD-19 4944 |
Tycho2 | 6273-00422-1 | Pflag | RAmdeg | 274.24400850 | DEmdeg | -18.96811041 | |||||
PmRA | -0.4 | PmDE | -1.6 | E RAmdeg | 5 | E DEmdeg | 6 | ||||
E pmRA | 1.3 | E pmDE | 1.4 | EpRAm | 1991.31 | EpDEm | 1991.18 | ||||
Num | 12 | Q RAmdeg | 1.0 | Q DEmdeg | 1.3 | Q pmRA | 1.1 | ||||
Q pmDE | 1.4 | BTmag | 7.539 | E BTmag | 0.016 | VTmag | 7.400 | ||||
E VTmag | 0.011 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 274.24400972 | DEdeg | -18.96810667 | EpRA 1990 | 1.77 | |||||
EpDE 1990 | 1.77 | E RAdeg | 4.6 | E DEdeg | 5.6 | Posflg | |||||
Corr | 0.0 |
SAO | 161255 | DelFlag | RA1950 | PmRA1950 | 0 | ||||||
DE1950 | PmDE1950 | 0.003 | Vmag | 7.5 | SpType | B2 | |||||
Double code | Source | 22 | CatNum | 7593 | DM | BD-19 4944 | |||||
DMcomp | BDsup | HD | 167659 | M HD | 0 | ||||||
GC | RA1950rad | 4.77361122 | DE1950rad | -0.33138348 | PmRA2000 | 0.0001 | |||||
PmDE2000 | 0.004 |
Coord arcsec 2000 | 181658.56-185805.1 | Mag | 9.3 | Spectral class | III | Calc delta mag | 2.5 | ||||
Calc coord | yes |
Coord arcsec 2000 | 181657.71-185817.1 | Mag | 13.5 | Calc delta mag | 6.7 | Calc coord | yes |
Coord arcsec 2000 | 181658.90-185804.9 | Mag | 12.57 | Spectral class | III | Calc delta mag | 5.77 | ||||
Calc coord | yes |
Coord arcsec 2000 | 181658.21-185807.3 | Mag | 13.63 | Spectral class | III | Calc delta mag | 6.83 | ||||
Calc coord | yes |
Coord arcsec 2000 | 181658.97-185801.2 | Mag | 14.01 | Spectral class | III | Calc delta mag | 7.21 | ||||
Calc coord | yes |