Notes for HD 210277

Alias HIP 109378

by Jean Schneider

update: 22 November 2000

---

The planet(s):

• Detection method: Radial Velocity at Keck
• Basic data:

  Name:	HD 210277 b
  M.sini:	1.24 ± 0.03 MJ (From disk inclination: 2.2 MJ, Trilling et al.)
  Semi-major axis:	1.097 AU
  Orbital period:	435.6 ± 1.9 d.
  Eccentricity:	0.450 ± 0.015
  Omega (deg):	117
  T_peri (JD-2450000):	119.84
  Inclinaison:	-

• Remarks:
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 18 M_J and inclination of 175.8^o
  Circumstellar disk found at 1.6, 2,1 2.3 and 2.5 microns by Trilling et al (1999, 2000). From the disk inclination (40^o ± 10^o) a planet mass of 2.2 ^+0.6_-0.2 M_J can be infered.
• References:
  1. GIMENEZ A., 2000
     ubvy Photometry of stars with planets.
     Astron. & Astrophys., 356, 213.
     paper
  2. GONZALEZ G., WALLERSTEIN G. & SAAR S., 1999
     Parent Stars of Extrasolar Planets. IV. 14 Herculis, HD 187123, and HD 210277
     ApJ. Letter, 511 Feb 1999
     paper
  3. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, accepted
     paper
  4. MARCY G., BUTLER P., VOGT S., FISCHER D. & LIU M., 1998h
     Two New Planets in Eccentric Orbits.
     Apj., 520, 239
     paper
  5. MARCY G., BUTLER P., VOGT S., & FISCHER D., 1998k Extrasolar Planets: Masses and Orbits.
     193^rd AAS meeting
     abstract
  6. RYAN S, 2000
     The Host Stars of Extrasolar Planets Have Normal Lithium Abundances.
     MNRAS, in press preprint
  7. TRILLING D., BROWN R. & RIVKIN A., 1999a
     Circumstellar dust disks and extrasolar planets: Far-off analogs of our Solar System
     in 31^st Annual Meeting of the DPS
     abstract
  8. TRILLING D., BROWN R. & RIVKIN A., 2000
     Circumstellar Dust Disks around Stars with Known Planetary Companions.
     ApJ., 529, 499
     paper
• Other Web pages:
  1. Radial velocity curve (Marcy et al.)

---

The star:

• Distance: ~ 22 pc
• Spectral type: G0
• Apparent magnitude: V = 6.63
• Coordinates (2000):    RA = 22 09 29.49       DEC = -07 32 32.7
• Metallicity: [Fe/H]= 0.16
• Mass (M_sun): M= 0.99
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 210277 ' in the `objects' field)

---

Back to the Extra-solar Planets Catalog

Publikacii s klyuchevymi slovami: ekzoplaneta - Planety u drugih zvezd Publikacii so slovami: ekzoplaneta - Planety u drugih zvezd
Sm. takzhe: Zoopark ekzoplanet: drugie zvezdy Temperatura na ekzoplanete WASP-43b ε Tel'ca: zvezda s planetoi PDS 70: disk, planety i sputniki Na dalekoi ekzoplanete obnaruzhen metan Zvezda s'edaet planetu Sed'moi mir u zvezdy Trappist-1 Vse publikacii na tu zhe temu >>