List of stars that have unusual dimming periods

This list of stars that have unusual dimming periods is a table of stars that have been observed to darken and brighten and do not appear to be eclipsing binaries or intrinsic variables. It is based on studies searching for analogs of Tabby's Star.^[1]^[2]

Artist's concept of an "uneven ring of dust" orbiting KIC 8462852, also known as Tabby's Star

The listing here is ordered alphabetically.

List

Star designation	Stellar class	Magnitude		Right ascension (J2000)	Declination (J2000)	Distance (light-years)	Reason for dimming
Star designation	Stellar class	Apparent	Absolute	Right ascension (J2000)	Declination (J2000)	Distance (light-years)	Reason for dimming
ASASSN-V J193622.23+115244.1	—	14.0–15.5^[3]	—	19^h 36^m 22.23^s^[3]	+11° 52′ 44.1″^[3]	6592^[3]	Unknown
ASASSN-V J213939.3-702817.4	F0V^[4]	12.95–14.22^[5]	2.5^[5]	21^h 39^m 39.3^s^[5]	−70° 28′ 17.4″^[5]	3630^[4]	Unknown
Betelgeuse	M1-2^[6]	+0.50^[7]	—	05^h 55^m 10.30536^s^[8]	+07° 24′ 25.4304″^[8]	—	"large-grain circumstellar dust"^[9]^[10]
EPIC 204278916	M1^[11]	13.7^[12]	—	16^h 02^m 07.576^s^[13]	−22° 57′ 46.89″^[13]	—	Dust disk
EPIC 204376071	M^[14]	—	—	16^h 04^m 10.1267^s^[15]	−22° 34′ 45.5503″^[15]	440^[14]	Possibly giant planet or brown dwarf with rings
HD 139139 (EPIC 249706694)	G3/5V	9.84;^[16] 9.677^[17]	—	15^h 37^m 06.215^s^[17]	−19° 08′ 32.96″^[17]	350^[18] 572^[17]	Unknown
KH 15D	K7^[19]	15.5–21.5^[20]	6.226^[21]	06^h 41^m 10.31^s^[22]	+09° 28′ 33.2″^[22]	773^[23]	Possibly circumbinary disk
KIC 4150611 (HD 181469)	Pulsator/K/M/G	—	—	19^h 18^m 58.21759^s^[24]	+39° 16′ 01.7913″^[24]	—	Five-star system
PDS 110	keF6 IVeb^[25]	10.422^[25]	2.54^[25]	05^h 23^m 31.008^s^[25]	–01° 04′ 23.68″^[25]	1090^[25]	Possibly giant planet or brown dwarf with disc of dust or large ring system
RW Cephei	K2 0-Ia^[26]	6.0–7.6^[27]	—	22^h 23^m 07.01521^s^[28]	+55° 57′ 47.6244″^[28]	11,000^[29]^[a]	Great dimming event similar to Betelgeuse
RZ Piscium	K0 IV^[30]	11.29–13.82^[30]	—	01^h 09^m 42.056^s^[31]	+27° 57′ 1.95″^[31]	550^[32]	Substantial mass of gas and dust, possibly from disrupted planet
Tabby's Star (KIC 8462852)	F3V^[33]^[34]	11.705^[34]	3.08^[33]	20^h 06^m 15.4527^s^[33]	+44° 27′ 24.791″^[33]	1470^[33]	Unknown
TIC 400799224	—	—	—	—	—	—	"probably from an orbiting body that periodically emits clouds of dust that occult the star"^[35]^[36]
V1400 Centauri	K5 IV(e) Li^[37]	12.31^[37]	—	14^h 07^m 47.93^s^[37]	−39° 45′ 42.7″^[37]	434^[38]	Planet with gigantic ring system
VVV-WIT-07	—	14.35–16.164^[39]	—	17^h 26^m 29.387^s^[39]	−35° 40′ 6.20″^[39]	23000/?^[39]	Unknown
WD 1145+017 (EPIC 201563164)	DB^[40]	17.0^[41]	—	11^h 48^m 33.63^s^[40]	+01° 28′ 59.4″^[40]	570^[42]	Dust disk
ZTF J0139+5245 (ZTF J013906.17+524536.89)	DA^[43]	18.4^[43]	—	01^h 39^m 06.17^s	+52° 45′ 36.89″	564^[43]	Dust disk
Gaia17bpp	M0-III	16.13 - 20.48^[44]	—	19^h 37^m 23.16^s	+17° 59′ 02.90	27,600^[45]	Dust disk

Notes

References

External links

SIMBAD Astronomical Database by the Centre de données astronomiques de Strasbourg

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Search

List of stars that have unusual dimming periods

Contents

List

See also

Notes

References

External links