Coord 2000 | 22577-2937 | Discov num | MAM 1 | Comp | AC | Coord arcsec 2000 | 22 57 39.04 -29 37 20.0 | ||||
Date first | 1998 | Date last | 2000 | Obs | 2 | ||||||
Pa first | 338 | Pa last | 337.9 | P.A. Now (θ) | 337.9° | ||||||
Sep first | 999.9 | Sep last | 9999.999 | Sep. Now (ρ) | 9999.999" | ||||||
Mag pri | 1.25 | Mag sec | 12.62 | delta mag (ΔM) | 11.37 | Spectral class | A3V+M4V (white/red) | ||||
Pri motion ra | +329 | Sec motion ra | +334 | ||||||||
Pri motion dec | -165 | Sec motion dec | -178 | ||||||||
Notes | N T (See Notes, Parallax indicates physical) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 191524 | 22 57 39 -29 37 20 | KAL 1 Aa,Ab | 2006 | 2 | 251 | 12.7 | 1.16 | 24.60 | 23.44 | |||
Show | Fomalhaut | 191524 | 22 57 39 -29 37 20 | SHY 106 AB | 1998 | 3 | 188 | 999.9 | 1.25 | 6.60 | 5.35 | ||
Show | 191524 | 22 57 39 -29 37 20 | MAM 1 AC | 2000 | 2 | 338 | 999.9 | 1.25 | 12.62 | 11.37 | <=== |
Common name | Fomalhaut | Var name | NSV14372 PsA | Constellation | Piscis Austrinus | SAO | 191524 | ||||
HIP | 113368 | Tycho2 | 6977-01267-1 | HD | 216956 | HR | 8728 | ||||
GC | 32000 | GL | Gl 881 | CD | CD-3019370 | CP | CP-30 6685 | ||||
Bayer | Alpha Piscis Austrini | Bayer name | Alp PsA | Flamsteed | 24 Piscis Austrini | Flamsteed name | 24 PsA | ||||
FK5 | 867 | Distance | 7.7 | Distance ly | 25.12 | Bayer greek | α PsA |
Meaning | The name is originally from Arabic: ?? ????? fum al-?awt ('mouth of the fish'). In Persian astrology, this star was called "Haftorang, Watcher of the South", one of the royal stars. |
discov_num | notes | refcode |
KAL 1 | Aa,Ab: Primary is alp PsA = Fomalhaut. Ab component is an exoplanet | |
~119 au from the star and ~18 au from the inner edge of the dust belt | ||
surrounding the star. Orbital motion is detected by HST observations | ||
separated by 1.73 years; the planet's mass if thought to be <3 Mjup. | Kal2008 | |
Intensity Interferometer Limb-darkened diameter 2.10 +/- 0.14 mas. | HBr1974 | |
SHY 106 | AB: HIP 113368 + HIP 113283 | |
The pair may have first been noted as a cpm pair by Luyten. | Luy1938 | |
VLTI uniform disk diameter of B: 0.750 +/- 0.066 mas, | LTI2009 | |
VLTI limb-darkened disk diameter of B: 0.769 +/- 0.067 mas, | ||
R = 0.629 +/- 0.051 \rsun, Teff = 4711 +/- 134 K, | ||
M = 0.505 +/- 0.025 \msun. | ||
MAM 1AC | Full precision on relative position: PA = 337.9005206265515 and Sep = | Mam2013b |
20410.120108318326" based on UCAC4 ICRS positions undated from the | Mam2013 | |
published value. | ||
Parallax of A component = 129.81 +/- 0.47 mas. | VlF1997 | |
Parallax of C component = 129.57 +/- 0.31 mas. | XXX2016b | |
Parallax of C component = 132.07 +/- 1.19 mas. | JLB2017 |
refcode | metd | author | reference |
HBr1974 | - | Hanbury Brown, R., Davis, J., & Allen, L.R. | 1974MNRAS.167..121H |
HBr1974 | MNRAS 167, 121, 1974 | ||
JLB2017 | not - | Bartlett, J.L., Lurie, J.C., Riedel, A., Ianna, P.A., Jao, W.-C., Henry, T.J., | 2017AJ....154..151B |
JLB2017 | Winters, J.G., Finch, C.T., & Subasavage, J.P. | ||
JLB2017 | AJ 154, 151, 2017 | ||
Kal2008 | A w | Kalas, P., Graham, J.R., Chiang, E., Fitzgerald, M.P., Clampin, M., Kite, E.S., | 2008Sci...322.1345K |
Kal2008 | +Ha | Stapelfeldt, K., Marois, C., & Krist, J. | |
Kal2008 | Science 322, 1345, 2008 | ||
LTI2009 | not j | Demory, B.-O., Segransan, D., Forveille, T., Queloz, D., Beuzit, J.-L., Delfosse, | 2009A&A...505..205D |
LTI2009 | X., Di Folco, E., Kervella, P., Le Bouquin, J.-B., Perrier, C., Benisty, M., | . | |
LTI2009 | Duvert, G., Hofmann, K.-H., Lopez, B. & Petrov, R. | . | |
LTI2009 | A&A 505, 205, 2009 | . | |
Luy1938 | Ma - | Luyten, W.J. | 1938AJ.....47..115L |
Luy1938 | AJ 47, 115, 1938 | ||
Mam2013 | C - | Mamajek, E.E., Bartlett, J.L., Seifahrt, A., Henry, T.J., Dieterich, S.B., Lurie, | 2013AJ....146..154M |
Mam2013 | +Eu | J.C., Kenworthy, M.A., Jao, W.-C., Riedel, A.R., Subasavage, J.P., Winters, J.G., | |
Mam2013 | Finch, C.T., Ianna, P.A. & Bean, J. | ||
Mam2013 | AJ 146, 154, 2013 | ||
Mam2013b | Eu - | Mamajek, E.E. | . |
Mam2013b | +C | private communication, 2013 | |
VlF1997 | H - | van Leeuwen, F. | 1997IAUDS.133T...3V |
VlF1997 | Inf. Circ. 133, 3, 1997 | ||
XXX2016b | not - | Weinberger, A.J., Boss, A.P., Keiser, S.A., Anglada-Escude, G., Thompson, I.B. & | 2016AJ....152...24W |
XXX2016b | Burley, G. | ||
XXX2016b | AJ 152, 24, 2016 |
idgroup | discov | author |
1 | SHY | Shaya, E.J. & Olling, R. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
22577-2937 | MAM 1 | AC | 2000 | 1 | 338 | 999.9 | 1.25 | 12.62 | A3V+M4V | NV | 225739.04-293720.0 |
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 | |
Ab | pa=248.8° sep=11.24" | ||
B | pa=186.9° sep=7042.54" | pa=186.8° sep=7037.28" | |
C | pa=340.6° sep=9839.10" | pa=340.6° sep=9839.35" | pa=351.7° sep=16439.21" |
Common name | Fomalhaut | Meaning | The name is originally from Arabic: ?? ????? fum al-?awt ('mouth of the fish'). In Persian astrology, this star was called "Haftorang, Watcher of the South", one of the royal stars. | Coord arcsec 2000 | 225739.04-293720.0 | Mag | 1.25 | ||||
Spectral class | A3V (white) | PmRA | 329.00 | PmDE | -164.0 | SAO | 191524 | ||||
HIP | 113368 | Tycho2 | 6977-01267-1 | HD | 216956 | HR | 8728 | ||||
GC | 32000 | CD | CD-3019370 | CP | CP-30 6685 | Bayer | Alpha Piscis Austrini | ||||
Bayer name | Alp PsA | Flamsteed | 24 Piscis Austrini | Flamsteed name | 24 PsA | FK5 | 867 |
SAO | 191524 | DelFlag | RA1950 | PmRA1950 | 0.0258 | ||||||
DE1950 | PmDE1950 | -0.161 | Vmag | 1.3 | SpType | A3 | |||||
Double code | Source | 74 | CatNum | 867 | DM | CD-3019370 | |||||
DMcomp | BDsup | HD | 216956 | M HD | 0 | ||||||
GC | 32000 | RA1950rad | 5.9990989 | DE1950rad | -0.52163909 | PmRA2000 | 0.0257 | ||||
PmDE2000 | -0.165 |
Catalog | H | HIP | 113368 | Proxy | RAhms | 22 57 38.83 | |||||
DEdms | -29 37 18.6 | Vmag | 1.17 | VarFlag | R Vmag | G | |||||
RAdeg | 344.412 | DEdeg | -29.6218 | AstroRef | Plx | 130.08 | |||||
CCDM | N CCDM | Nsys | Ncomp | 1 | |||||||
MultFlag | G | Source | Qual | M HIP | |||||||
Theta | Rho | HD | 216956 | BD | |||||||
CD | CD-3019370 | CP | CP-30 6685 | Dm number | -3019370 | VIred | 0.08 | ||||
SpType | A3V | R SpType | Coord arcsec 2000 | 225738.83-293718.6 |
HIP | 113368 | Sn | 5 | So | 1 | Nc | 1 | ||||
RArad | 6.0111194213 | DErad | -0.5169985827 | Plx | 129.81 | PmRA | 328.95 | ||||
PmDE | -164.67 | E RArad | 0.39 | E DErad | 0.3 | E Plx | 0.47 | ||||
E pmRA | 0.5 | E pmDE | 0.35 | Hpmag | 1.1808 | E Hpmag | 0.0006 | ||||
SHp | 0.004 | VA | 0 | BV | 0.145 | E BV | 0.011 | ||||
VI | 0.16 |
Coord arcsec 2000 | 225738.24-293724.1 | Mag | 24.6 | Calc delta mag | 23.44 | Calc coord | yes |
Coord arcsec 2000 | 225634.35-313352.8 | Mag | 6.6 | Spectral class | K4V (yellow-orange) | PmRA | 334.00 | ||||
PmDE | -157.0 | Calc delta mag | 5.44 | Calc coord | yes |
Coord arcsec 2000 | 225328.22-270254.7 | Mag | 12.62 | Spectral class | M4V (red) | PmRA | 334.00 | ||||
PmDE | -178.0 | Calc delta mag | 11.46 | Calc coord | yes |