δ Serpentis (delta Serpentis)

Below the horizon. Rise: 14:44 | Tran: 21:35 | Set: 4:31

Alt: -23.10° Az: 328.51° Direction: North-North-West

δ Serpentis is a variable and multiple hypergiant star of spectral class F0 in the constellation of Serpens.

δ Serpentis visual magnitude is 3.8. Because of its moderate brightness, δ Serpentis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of δ Serpentis (delta Serpentis) star

DSS2 image of δ Serpentis. The red arrow shows the motion of δ Serpentis during the next 10000 years (-12.33 arcmin in Right Ascension and 2.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 36m 01s

Declination +10° 27’ 19”

Hour Angle 10h 03m 01s

Sidereal Time 01h 39m 03s

J2000

Right Ascension 15h 34m 48s

Declination +10° 32’ 21”

Galactic Coordinates

Galactic Longitude 17.59°

Galactic Latitude 48.19°

Finder Chart

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Finder chart for δ Serpentis (delta Serpentis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.8

Class Hypergiant

Spectral Type F0IV

Color Index (B-V) 0.26

Temperature 7726K

Star System Properties

δ Serpentis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the δ Serpentis double sysyem:

Main star magnitude 3.8

Secondary star magnitude 4.9

Magnitude difference 1.1

Separation 3.9 arcsec

Alternative Designations

Bayer designation δ Serpentis
(delta Serpentis)

Flamsteed designation 13 Serpentis

Henry Draper Catalogue HD138918

SAO Catalogue SAO101624

Durchmusterung Catalogue BD+11 2821

General Catalogue of Variable Stars Del Ser

Aitken Double Star Catalogue ADS9701

Visibility from Your Location

Today's δ Serpentis (delta Serpentis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 79.5° RISE 14:44

Max altitude: 49.0° TRANSIT 21:35

Azimuth: 280.5° SET 4:31

Set Location

Other stars in Serpens