Menu

Wurren — Variable Star in Phoenix

HIP 5348; Zeta Phoenicis

Observable Variable Star Excellent (72/100)

Range: 3.94 - 4.42, Period: 1.7d, Type: EA/DM

Magnitude 3.9–4.4m VariableStar Phoenix (Phe) Visible
Star Map
+ List + Plan

About Wurren

Description

Wurren, Zeta Phoenicis, is a B-type main-sequence star of spectral class B7 V about 298 light-years away in the southern constellation Phoenix. It shines at combined magnitude 3.92. Wurren is an Algol-type eclipsing binary with a companion of similar mass in a 1.67-day orbit. The system shows shallow eclipses easily detectable with photometric monitoring.

Observing Tips

Wurren sits in the southern sky, best observed from the southern hemisphere. The eclipses are shallow — about 0.1 magnitudes — and detectable only with careful photometry, not by visual estimation. Best observed from southern latitudes September through February.

History

The name Wurren comes from Australian Aboriginal tradition (Wardaman language), meaning "the child" — one of the celestial family members in Aboriginal sky-lore. The IAU adopted the name in 2017.

Fun Facts

Wurren's eclipsing nature was discovered via photoelectric photometry in the mid-20th century. Both components are near-identical B-type stars, making the system a rare example of a detached near-twin-mass eclipsing binary.

Observe

1Physical Properties

Magnitude 3.92
Range 3.94 - 4.42
Period 40.1 hours
Variable Type Eclipsing Binary (Algol-type)
Spectral Type B7(V)
Star Color Blue-white (B-V -0.08)
Distance 298 ly

2Position & Identifiers

RA 01h 08m 23.1s
Dec -55° 14' 45.0"
Constellation Phoenix (Phe)
HR 338
HIP 5348
HD 6882
SAO 232306
Bayer Zeta
Variable ID Zet Phe

3How easy to follow?

Magnitude 3.9 – 4.4 mag Amplitude 0.5 mag Period 1.67 d Type EA/DM
Sign in and configure your equipment and default location to see a personalized row.
Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Hard+ Hard Hard
50mm finder Medium Medium Medium
150mm scope Medium Medium Medium
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

Set a location in User Settings to see visibility data.

Best season Sep – Nov (peak: Oct)

5Survey Image

Loading survey image…

6Light Curve

7Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

Loading comparison stars…

Explore

9

Size Comparison

Querying VizieR for stellar data…
10

Compare Stars

11

Spectral Classification

12

Hertzsprung-Russell Diagram

Loading HR diagram…
13

Stellar Lifecycle

14

Blackbody Spectrum

15

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

16

Stellar Fusion

Discover

17Stellar Notes

Primary component of visual system. EA 3.92 - 4.42V, 1.6697664d, i 84.7d.
AB 4.2, 7.0v close binary; vsini of B 87k/s. C, 7.0 F7V at 6.6" CPM.
1.6698d, K 130.6k/s, V0 +19.6k/s, msin3i 3.83, asini 3.00. Rotation apsides 32.5y. Secondary of SB, | vsini 68k/s.
Phosphorus in spectrum.
18

Light Travel Time Machine

19

Relativistic Travel

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

}