AS 316

CONFIRMED MILKY WAY

Constellation
Sagittarius

Equatorial coordinates
α = 18 42 32.804
δ = -21 17 46.746

Galactic coordinates
l = 12.8856°
b = -7.6689°

Suspected	1969^Ref
Confirmed	1969^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

AS 316	IRAS -	GSC2.4.2 SA73062075	AAVSO 000-BLH-154
SIMBAD EM* AS 316	Pan-STARRS 82442806366104801	SAO -	VSX 62988
GAIA DR3 4079981986449605376	SkyMapper 184232.80-211746.6	WRAY -	GCVS -
2MASS J18423280-2117467	HIP -	Hen 2-417	BD -
WISE J184232.80-211746.6	TYC -	ESO 591-14	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	AS 316 (Conf.)	Belzcyński et al. (2001)	AS 316 (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	AS 316 (Conf.)	Akras et al. (2019)	AS 316 (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	MHA 208-58 (Conf.)

Position

Right ascension (°)	280.6367^Ref	Parallax (mas)	0.142±0.028^Ref	Reddening E(B-V) (mag)	0.36±0.01^Ref ^{, Note}
Declination (°)	-21.2963^Ref	Distance (kpc)	4.5^Ref 6.85^Ref ^{, Note}, 5.99^Ref ^{, Note}
Galactic longitude (°)	12.8856^Ref	Proper motion in α (mas/yr)	1.31±0.03^Ref
Galactic latitude (°)	-7.6689^Ref	Proper motion in δ (mas/yr)	-5.42±0.02^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	Yes^Ref
X-Ray type	-	J (mag)	9.14^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	8.19^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	7.79^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	7.62^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.58^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	7.02^Ref	IPmax (eV)	114^Ref
B (mag)	12.00^Ref	WISE W4 (mag)	6.12^Ref	[O III] lines	Yes^Ref
V (mag)	-	IRAS 12μm (Jy)	-	He II lines	Yes^Ref
R (mag)	13.29^Ref	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	10.96^Ref	IRAS 60μm (Jy)	-	O VI lines	Yes^Ref
BP (mag)	13.45^Ref	IRAS 100μm (Jy)	-
G (mag)	12.17^Ref	AKARI S09 (Jy)	0.07^Ref
RP (mag)	11.01^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	-86.10±2.04^Ref	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	M3 III^Ref, M3 III^Ref, M4 III^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	3649^Ref	Radius (R_⊙)	-	Type	SR^Ref
IR type	S^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	62±1^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

Type/Spectral type	WD^Ref	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	2000^Ref
Lower limit (K)	114000^Ref
Upper limit (K)	-

Links

SIMBAD CDS Portal ARAS Database

Notes

Herbig (1969) reported an M-type spectrum with Balmer lines, He II, and [O III]. Additionally, Allen (1978), Carrasco et al. (1983), and Stenholm & Acker (1987) detected O VI lines in their observations.

References

Allen, D. A., 1978, MNRAS, 184, 601, 1978MNRAS.184..601A
Carrasco, L., Costero, R., Serrano, A., 1983, IAUS, 103, 548, 1983IAUS..103..548C
Gromadzki, M., Mikołajewska, J., Soszyński, I., 2013, AcA, 63, 4, 405, 2013AcA....63..405G
Herbig, G. H., 1969, PNAS, 63, 4, 1045, 1969PNAS...63.1045H
Hoffleit, D., 1970, IBVS, 469, 1, 1970IBVS..469....1H
Medina Tanco, G. A., Steiner, J. E., 1995, AJ, 109, 1770, 1995AJ....109.1770M
Mikołajewska, J., Acker, A., Stenholm, B., 1997, A&A, 327, 191, 1997A&A...327..191M
Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
Stenholm, B., Acker, A., 1987, A&AS, 68, 51, 1987A&AS...68...51S

Last updated: April 18, 2022