QS Nor

CONFIRMED MILKY WAY

Constellation
Norma

Equatorial coordinates
α = 16 21 07.753
δ = -42 23 54.114

Galactic coordinates
l = 338.9352°
b = 5.3557°

Suspected	1974^Ref
Confirmed	1997^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

QS Nor	IRAS -	GSC2.4.2 S8VW000571	AAVSO 000-BDW-377
SIMBAD WRAY 15-1461	Pan-STARRS -	SAO -	VSX 20287
GAIA DR3 5992529686406981248	SkyMapper 162107.75-422354.1	WRAY 15-1461	GCVS QS Nor
2MASS J16210775-4223541	HIP -	Hen 2-156	BD -
WISE J162107.75-422354.2	TYC -	ESO 331-2	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	-	Belzcyński et al. (2001)	QS Nor (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	-	Akras et al. (2019)	QS Nor (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	QS Nor (Susp.)

Position

Right ascension (°)	245.2823^Ref	Parallax (mas)	0.025±0.020^Ref	Reddening E(B-V) (mag)	0.79±0.02^Ref ^{, Note}
Declination (°)	-42.3984^Ref	Distance (kpc)	3.4^Ref 13.93^Ref ^{, Note}, 13.55^Ref ^{, Note}
Galactic longitude (°)	338.9352^Ref	Proper motion in α (mas/yr)	-4.96±0.02^Ref
Galactic latitude (°)	5.3557^Ref	Proper motion in δ (mas/yr)	-2.30±0.01^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	-
X-Ray type	-	J (mag)	9.48^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	8.49^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	8.07^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	7.78^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.73^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	6.69^Ref	IPmax (eV)	35.1^Ref
B (mag)	14.61^Ref	WISE W4 (mag)	5.95^Ref	[O III] lines	Yes^Ref
V (mag)	13.46^Ref	IRAS 12μm (Jy)	-	He II lines	No^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	No^Ref
BP (mag)	13.44^Ref	IRAS 100μm (Jy)	-
G (mag)	12.42^Ref	AKARI S09 (Jy)	0.10^Ref
RP (mag)	11.36^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	244±5^Ref	γ velocity (km/h)	-	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	Min (V) = 2452024 + 244±5 x E^Ref

Cool component

Spectral type	K5^Ref	Mass (M_⊙)	-	Pulsation	-
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	-
IR type	S^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	-
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_⊙)	3900^Ref
Lower limit (K)	35000^Ref
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

The PN candidate, initially noted for its stellar appearance by Sanduleak & Stephenson (1973), raised suspicions of being a symbiotic star according to Acker et al. (1988), this was later confirmed by Mikołajewska et al. (1997). Additionally, support for its symbiotic nature was prO VIded by Pereira et al. (1998).

References

Acker, A., Lundstrom, I., Stenholm, B., 1988, A&AS, 73, 325, 1988A&AS...73..325A
Allen, D. A., Glass, I. S., 1974, MNRAS, 167, 337, 1974MNRAS.167..337A
Mikołajewska, J., Acker, A., Stenholm, B., 1997, A&A, 327, 191, 1997A&A...327..191M
Pereira, C. B., Landaberry, S. J. C., Da Conceição, F., 1998, AJ, 116, 4, 1971, 1998AJ....116.1971P
Sanduleak, N., Stephenson, C. B., 1973, ApJ, 185, 899, 1973ApJ...185..899S

Last updated: April 14, 2022