RR Lyncis — Variable Star in Lynx
Excellent (60/100)
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1Physical Properties
Magnitude
5.64
Range
5.52 - 6.03
Period
9.9 days
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
A3Vm
Star Color
White
(B-V 0.24)
Distance
142 ly
2Position & Identifiers
RA
06h 26m 25.8s
Dec
+56° 17' 06.0"
Constellation
Lynx
(Lyn)
HR
2291
HIP
30651
HD
44691
SAO
25731
Variable ID
RR Lyn
Querying VizieR catalog...
3How easy to follow?
Magnitude
5.6 – 6.0 mag
Amplitude
0.4 mag
Period
9.95 d
Type
EA/DM
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard+ | V. hard | V. hard |
| 50 mm finder 50mm finder | Hard+ | Hard+ | Hard+ |
| 150 mm telescope 150mm scope | Hard+ | Hard+ | Hard+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Out of reach for typical amateur telescopes, even at Bortle 3.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Nov – Jan
(peak: Dec)
5Survey Image
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6Light Curve
7Comparison Stars for RR Lyn (5.6–6.0)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
8
Size Comparison
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9
Compare Stars
10
Spectral Classification
11
Hertzsprung-Russell Diagram
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12
Stellar Lifecycle
13
Blackbody Spectrum
14
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
15
Stellar Fusion
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16Stellar Notes
EA 5.64 - 6.03V, 9.945070d, i 87.8d. Close third body or circumstellar matter needed to account for the light curve, | but no spectroscopic evidence available.
Possibly faint visual companion at 50".
9.9451d, K 65.7k/s, V0 -11.9k/s, msin3i 2.11, asini 8.98.
UMa stream; Sirius group.
CaII/H/met indicate A3/A1/F0-2, respectively. Spectrum also classified A3/A7/F2, A3Vm+F0V and A7V+F3V.
17
Light Travel Time Machine
18
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.
2 Lyn
Pulsating variable, period 7.2h
Variable Star
mag 4.48
2.9°
Lynx
NGC 2128
Elliptical galaxy
Galaxy
mag 13.0
3.3°
Camelopardalis
12 Lyn
Tight double — a rewarding split at 1.9″
Double Star
mag 4.87
4.1°
Lynx
Psi Aur
HIP 30520; Psi1 Aurigae; 46 Aurigae
Semi-regular variable, range 4.8–5.7
Variable Star
mag 4.91
7.0°
Auriga
NGC 2126
Open cluster
Open Cluster
mag 10.0
7.3°
Auriga
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