Eta Sculptoris
Eta Sculptoris, Latinized from η Sculptoris, is a single, variable star in the central part of the southern constellation of Sculptor. It is visible to the naked eye as a faint, red-hued star with an apparent visual magnitude that fluctuates around 4.81. The star is located approximately 460 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +12 km/s.

This object is an aging red giant star, currently on the asymptotic giant branch, with a stellar classification of M4III. With the supply of hydrogen at its core exhausted, the star has cooled and expanded. It now has 80 times the radius of the Sun. Eta Sculptoris is classified as a semiregular variable with a visual magnitude that fluctuates between +4.80 and +4.90, The pulsations have periods of 22.7, 23.5, 24.6, 47.3, 128.7 and 158.7 days. On average, this star is radiating over a thousand times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,641 K.
Q466126
Latinized
ORG
Q6243
variable star
Concept
Q8928
constellation
Concept
Q9286
Sculptor
CEL
Q124313
apparent visual magnitude
Concept
Q531
light years
Concept
Q906561
parallax
Concept
Q240105
radial velocity
Concept
Q50081
red giant
Concept
Q50089
asymptotic giant branch
Concept
Q25377588
stellar classification
Concept
Q60790215
core
Concept
Q48440
radius of the Sun
Concept
Q1054411
semiregular variable
CEL
Q843877
luminosity of the Sun
Concept
Q6372
photosphere
Concept
Q854050
effective temperature
Concept
Q5177988
Eta Sculptoris
CEL
Q5177988
Eta Sculptoris
CEL
+4.81^^http://www.w3.org/2001/XMLSchema#decimal
4.81
NUMBER
++12^^http://www.w3.org/2001/XMLSchema#decimal
+12
NUMBER
+4^^http://www.w3.org/2001/XMLSchema#decimal
4
NUMBER
+80^^http://www.w3.org/2001/XMLSchema#decimal
80
NUMBER
++4.80^^http://www.w3.org/2001/XMLSchema#decimal
+4.80
NUMBER
++4.90^^http://www.w3.org/2001/XMLSchema#decimal
+4.90
NUMBER
+22.7^^http://www.w3.org/2001/XMLSchema#decimal
22.7
NUMBER
+23.5^^http://www.w3.org/2001/XMLSchema#decimal
23.5
NUMBER
+24.6^^http://www.w3.org/2001/XMLSchema#decimal
24.6
NUMBER
+47.3^^http://www.w3.org/2001/XMLSchema#decimal
47.3
NUMBER
+128.7^^http://www.w3.org/2001/XMLSchema#decimal
128.7
NUMBER
+158.7^^http://www.w3.org/2001/XMLSchema#decimal
158.7
NUMBER
instance of
constellation
apparent magnitude
type of variable star
instance of