Menu

Iota Coronae Borealis — Star in Corona Borealis

Magnitude 5.0–5.1m Star Corona Borealis (CrB) Visible
Star Map
+ List + Plan

Observe

1Physical Properties

Magnitude 4.99
Range 4.96 - 5.08
Variable Type ACV:
Spectral Type A0p:Hg:
Star Color Blue-white (B-V -0.07)
Distance 326 ly

2Position & Identifiers

RA 16h 01m 26.6s
Dec +29° 51' 04.0"
HR 5971
HIP 78493
HD 143807
SAO 84152
Bayer Iota
Flamsteed 14 CrB

3How easy to spot?

Sign in and configure your equipment and default location to see a personalized row.
Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium Medium Hard+
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

Set a location in User Settings to see visibility data.

Best season Apr – Jun (peak: May)

5Survey Image

Loading survey image…

Explore

6

Size Comparison

Querying VizieR for stellar data…
7

Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

Loading HR diagram…
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

14Stellar Notes

Alpha CV?, 4.96 - 5.08V.
Pleiades group.
HgMn star. Overabundant mercury.
384d?
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.

}