WASP-17

WASP-17 / Dìwö
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Scorpius
Right ascension	15h 59m 50.9492s
Declination	−28° 03′ 42.313″
Apparent magnitude (V)	11.500
Characteristics
Spectral type	F6V
Astrometry
Proper motion (μ)	RA: −8.263(29) mas/yr ; Dec.: −9.427(22) mas/yr
Parallax (π)	2.4811 ± 0.0255 mas
Distance	1,310 ± 10 ly ; (403 ± 4 pc)
Details
Mass	1.2 M☉
Radius	1.38 R☉
Surface gravity (log g)	4.14 ± 0.03 cgs
Temperature	6509 ± 86 K
Metallicity [Fe/H]	–0.02 ± 0.09 dex
Rotational velocity (v sin i)	10.6 ± 1.3 km/s
Age	3 Gyr
Other designations
	Dìwö, 1SWASP J155950.94−280342.3,; USNO-B1.0 0619-0419495,; 2MASS J15595095-2803422,; TYC2 6787-1927-1, Gaia DR2 6042793005779654656
Database references
SIMBAD	data
Exoplanet Archive	data

WASP-17 is an F-type main sequence star approximately 1,310 light-years away in the constellation Scorpius.^[4]^[1]^[5]

WASP-17 is named Dìwö. The name was selected in the NameExoWorlds campaign by Costa Rica, during the 100th anniversary of the IAU. Dìwö in Bribri language means the sun.^[6]^[7]

The star, although similar to Sun in terms of overall contents of heavy elements, is depleted of carbon. Carbon to oxygen molar ratio of 0.18±0.04 for WASP-17 is well below solar ratio of 0.55.^[8]

^ ^a ^b ^c ^d ^e Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
^ Cite error: The named reference Maxted2011 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d Cite error: The named reference Torres2012 was invoked but never defined (see the help page).
^ Cite error: The named reference Anderson2010 was invoked but never defined (see the help page).
^ "Newfound Planet Orbits Backward". Space.com. 12 August 2009.
^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
^ Polanski, Alex S.; Crossfield, Ian J. M.; Howard, Andrew W.; Isaacson, Howard; Rice, Malena (2022), Chemical Abundances for 25 JWST Exoplanet Host Stars with KeckSpec, arXiv:2207.13662

[Gaia_DR3-1] Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).

[Maxted2011-2] Cite error: The named reference Maxted2011 was invoked but never defined (see the help page).

[Torres2012-3] Cite error: The named reference Torres2012 was invoked but never defined (see the help page).

[Anderson2010-4] Cite error: The named reference Anderson2010 was invoked but never defined (see the help page).

[5] "Newfound Planet Orbits Backward". Space.com. 12 August 2009.

[6] "Approved names". NameExoworlds. Retrieved 2020-01-02.

[7] "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.

[8] Polanski, Alex S.; Crossfield, Ian J. M.; Howard, Andrew W.; Isaacson, Howard; Rice, Malena (2022), Chemical Abundances for 25 JWST Exoplanet Host Stars with KeckSpec, arXiv:2207.13662

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Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Scorpius
Right ascension	15^h 59^m 50.9492^s^[1]
Declination	−28° 03′ 42.313″^[1]
Apparent magnitude (V)	11.500^[2]
Characteristics
Spectral type	F6V
Astrometry

Proper motion (μ)	RA: −8.263(29) mas/yr^[1] Dec.: −9.427(22) mas/yr^[1]
Parallax (π)	2.4811 ± 0.0255 mas^[1]
Distance	1,310 ± 10 ly (403 ± 4 pc)

Details

Mass	1.2 `M`_☉
Radius	1.38 `R`_☉
Surface gravity (log g)	4.14 ± 0.03^[3] cgs
Temperature	6509 ± 86^[3] K
Metallicity [Fe/H]	–0.02 ± 0.09^[3] dex
Rotational velocity (v sin i)	10.6 ± 1.3^[3] km/s
Age	3 Gyr

Other designations
Dìwö, 1SWASP J155950.94−280342.3, USNO-B1.0 0619-0419495, 2MASS J15595095-2803422, TYC2 6787-1927-1, Gaia DR2 6042793005779654656
Database references
SIMBAD	data
Exoplanet Archive	data