K 4-23

SUSPECTED MILKY WAY

Constellation
Aquila

Equatorial coordinates
α = 19 18 34.749
δ = +14 59 51.159

Galactic coordinates
l = 49.3346°
b = 0.9413°

Suspected	1974^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	-
Outbursts	-

Identifiers

K 4-23	IRAS 19162+1454	GSC2.4.2 N2C5841678	AAVSO -
SIMBAD PN K 4-23	Pan-STARRS 125992896447597569	SAO -	VSX 2206975
GAIA DR3 4320675016083211648	SkyMapper -	WRAY -	GCVS -
2MASS J19183473+1459513	HIP -	Hen -	BD -
WISE J191834.76+145951.3	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 (°)	289.6448^Ref	Parallax (mas)	0.283±0.076^Ref	Reddening E(B-V) (mag)	2.7±0.09^Ref ^{, Note}
Declination (°)	14.9975^Ref	Distance (kpc)	3.37^Ref ^{, Note}, 3.52^Ref ^{, Note}
Galactic longitude (°)	49.3346^Ref	Proper motion in α (mas/yr)	-1.78±0.08^Ref
Galactic latitude (°)	0.9413^Ref	Proper motion in δ (mas/yr)	-4.98±0.07^Ref

Observations

X-Ray	No^Ref	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	6.57^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	5.44^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	4.88^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	4.68^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	4.26^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	3.81^Ref	IPmax (eV)	-
B (mag)	-	WISE W4 (mag)	3.19^Ref	[O III] lines	-
V (mag)	-	IRAS 12μm (Jy)	1.19^Ref	He II lines	-
R (mag)	14.70^Ref	IRAS 25μm (Jy)	0.43^Ref	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	1.61^Ref	O VI lines	-
BP (mag)	15.58^Ref	IRAS 100μm (Jy)	15.80^Ref
G (mag)	11.67^Ref	AKARI S09 (Jy)	1.28^Ref
RP (mag)	10.10^Ref	AKARI S18 (Jy)	0.56^Ref

Orbit

Orbital period (days)	-	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	-

Cool component

Spectral type	M7-9^Ref	Mass (M_⊙)	-	Pulsation	Yes?^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	SR^Ref
IR type	S?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	176.1^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

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

Links

SIMBAD CDS Portal

Notes

Listed as a symbiotic star candidate in the HASH Database of PNe (Parker et al., 2016), likely based on the study by Allen (1974).

References

Allen, D. A., 1974, MNRAS, 168, 1, 1974MNRAS.168....1A
Parker, Q. A., Bojičić, I. S., Frew, D. J., 2016, JPhCS, 728, 3, 032008, 2016JPhCS.728c2008P

Last updated: March 25, 2022