New Online Database of Symbiotic Variables: KU Aps

Constellation
Apus

Equatorial coordinates
α = 17 21 50.972
δ = -81 00 36.558

Galactic coordinates
l = 311.9901°
b = -23.4154°

Suspected	2019^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	accreting-only^Ref
Outbursts	-

Identifiers

KU Aps	IRAS -	GSC2.4.2 S74H000516	AAVSO 000-BDD-335
SIMBAD V* KU Aps	Pan-STARRS -	SAO -	VSX 779
GAIA DR3 5774523953985025280	SkyMapper 172150.99-810036.3	WRAY -	GCVS KU Aps
2MASS J17215099-8100365	HIP -	Hen -	BD -
WISE J172150.97-810036.5	TYC -	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	260.4624^Ref	Parallax (mas)	0.074±0.029^Ref	Reddening E(B-V) (mag)	0.18±0.01^Ref ^{, Note}
Declination (°)	-81.0102^Ref	Distance (kpc)	11.55^Ref ^{, Note}, 8.04^Ref ^{, Note}
Galactic longitude (°)	311.9901^Ref	Proper motion in α (mas/yr)	-2.43±0.03^Ref
Galactic latitude (°)	-23.4154^Ref	Proper motion in δ (mas/yr)	1.31±0.03^Ref

Observations

X-Ray	No^Ref	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	9.58^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	8.83^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	8.55^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	8.22^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.96^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	7.50^Ref	IPmax (eV)	13.6^Ref
B (mag)	14.58^Ref	WISE W4 (mag)	6.98^Ref	[O III] lines	No^Ref
V (mag)	11.90^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)	13.76^Ref	IRAS 100μm (Jy)	-
G (mag)	12.37^Ref	AKARI S09 (Jy)	-
RP (mag)	11.12^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	40.98±1.80^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	-	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	Mira^Ref
IR type	S?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	117.3^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

Symbiotic candidate selected for AAVSO observing campaing (AAVSO Alert Notice 681) by Adrian B. Lucy (Columbia University). It is classified as a Mira pulsator in the GCVS.

KU Aps