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Rho Draconis — Star in Draco

Magnitude 4.5m Star Draco (Dra) Visible
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1Physical Properties

Magnitude 4.51
Spectral Type K3III giant
Star Color Red (B-V 1.32)
Distance 192 ly

2Position & Identifiers

RA 20h 02m 49.1s
Dec +67° 52' 25.0"
Constellation Draco (Dra)
HR 7685
HIP 98702
HD 190940
SAO 18676
Bayer Rho
Flamsteed 67 Dra
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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6

Size Comparison

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7

Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
10

Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

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

13

Stellar Fusion

Discover

14

Light Travel Time Machine

15

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.

Epsilon Dra
Medium+
Easy double, sep 3.1″
Double Star mag 3.83 2.7° Draco
Iris Nebula
NGC 7023
Medium+
Reflection nebula around a bright star
Reflection Nebula mag 6.8 5.5° Cepheus
T Cep
Medium
Mira-type variable, range 5.2–11.3
Variable Star mag 7.33 6.2° Cepheus
NGC 6939
Easy
Open cluster
Open Cluster mag 7.8 7.8° Cepheus
Show on Map

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