RR Tel

Constellation
Telescopium

Equatorial coordinates
α = 20 04 18.545
δ = -55 43 33.206

Galactic coordinates
l = 342.1627°
b = -32.2418°

Suspected	1977^Ref
Confirmed	1977^Ref
Symbiotic IR type	D^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - SyN^Ref

Identifiers

RR Tel	IRAS 20003-5552	GSC2.4.2 SAT7000451	AAVSO 000-BCK-377
SIMBAD V* RR Tel	Pan-STARRS -	SAO -	VSX 36253
GAIA DR3 6448785024330499456	SkyMapper 200418.53-554333.0	WRAY -	GCVS RR Tel
2MASS J20041854-5543331	HIP -	Hen 3-1811	BD -
WISE J200418.53-554332.9	TYC 8780-1277-1	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	RR Tel (Conf.)	Belzcyński et al. (2001)	RR Tel (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	RR Tel (Conf.)	Akras et al. (2019)	RR Tel (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	RR Tel (Conf.)

Position

Right ascension (°)	301.0773^Ref	Parallax (mas)	-2.889±0.206^Ref	Reddening E(B-V) (mag)	0.04±0.0^Ref ^{, Note}
Declination (°)	-55.7259^Ref	Distance (kpc)	2.5^Ref, 2.5^Ref, 2.7^Ref 13.16^Ref ^{, Note}, 13.98^Ref ^{, Note}
Galactic longitude (°)	342.1627^Ref	Proper motion in α (mas/yr)	2.15±0.18^Ref
Galactic latitude (°)	-32.2418^Ref	Proper motion in δ (mas/yr)	-3.26±0.16^Ref

Observations

X-Ray	Yes^Ref	IR type	D^Ref	Radio	Yes^Ref
X-Ray type	α^Ref	J (mag)	7.30^Ref	Flickering	No^Ref
GALEX FUV (mag)	12.47^Ref	H (mag)	6.08^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	13.26^Ref	K (mag)	4.90^Ref	Outburst type	SyN^Ref
IUE	Yes^Ref	WISE W1 (mag)	3.41^Ref	Jets	-
FUSE	Yes^Ref	WISE W2 (mag)	0.99^Ref	Resolved nebula	No^Ref
U (mag)	9.93^Ref	WISE W3 (mag)	0.41^Ref	IPmax (eV)	114^Ref, 141.3^Ref
B (mag)	12.13^Ref	WISE W4 (mag)	-0.62^Ref	[O III] lines	Yes^Ref
V (mag)	11.80^Ref	IRAS 12μm (Jy)	19.90^Ref	He II lines	Yes^Ref
R (mag)	11.69^Ref	IRAS 25μm (Jy)	16.40^Ref	[Fe VII] lines	Yes^Ref
I (mag)	-	IRAS 60μm (Jy)	2.62^Ref	O VI lines	Yes^Ref
BP (mag)	11.62^Ref	IRAS 100μm (Jy)	1.05^Ref
G (mag)	11.41^Ref	AKARI S09 (Jy)	21.59^Ref
RP (mag)	10.52^Ref	AKARI S18 (Jy)	15.58^Ref

Orbit

Orbital period (days)	109575?±-^Ref	γ velocity (km/h)	-	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	56^Ref
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	M5 III^Ref, M5 III^Ref, M6 III^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	2350±70^Ref	Radius (R_⊙)	-	Type	Mira^Ref
IR type	D^Ref	Luminosity (L_⊙)	7350-9450^Ref	Pulsation period (days)	386.73^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	Max (pg) = 2430900 + 386.73 x E^Ref

Hot component

Type/Spectral type	WD^Ref	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	0.07^Ref, 0.105^Ref	Accretion disk	-
Eff. temperature (K)	200000^Ref, 142000^Ref, 140000^Ref, 154000^Ref	Luminosity (L_⊙)	3500^Ref, 3700^Ref, 5000^Ref
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal ARAS Database

Notes

Detected variability on the timescale of 6440 - 7090 days was reported by Schmid & Schild (2002).

References

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