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Theta Lyrae — Star in Lyra

Magnitude 4.4m Star Lyra (Lyr) Visible
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+ List + Plan

Observe

1Physical Properties

Magnitude 4.36
Spectral Type K0+II
Star Color Orange (B-V 1.26) (reddened by dust)
Distance 251 ly

2Position & Identifiers

RA 19h 16m 22.1s
Dec +38° 08' 01.0"
Constellation Lyra (Lyr)
HR 7314
HIP 94713
HD 180809
SAO 68065
Bayer Theta
Flamsteed 21 Lyr
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium+ Medium
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

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

4Visibility

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Best season Jun – Aug (peak: Jul)

5Survey Image

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Explore

7

Size Comparison

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8

Compare Stars

9

Spectral Classification

10

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
11

Stellar Lifecycle

12

Blackbody Spectrum

13

Stellar Absorption Spectrum

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

14

Stellar Fusion

Discover

15

Light Travel Time Machine

16

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.

NGC 6791
Easy
Open cluster
Open Cluster mag 9.5 1.0° Lyra
Aladfar
HIP 94481; Eta Lyrae; 20 Lyrae
Easy
Easy double, sep 28.4″
Double Star mag 4.39 1.1° Lyra
RR Lyr
Medium+
Pulsating variable, period 13.6h
Variable Star mag 7.10 5.0° Lyra
M57
NGC 6720
Easy
Planetary nebula — try an OIII filter
Planetary Nebula mag 9.0 6.9° Lyra
Show on Map

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