SkyKeepsAKE page about the star Sadalmelik

Sadalmeldik is a relatively dim star located in the constellation Aqr. This celestial object has a magnitude of 2.728, signifying it’s one of the lesser known stars within the Aqr constellation. It is a visual magnitude, reflecting its relatively low brightness within our observable universe.

Sadalmeldik is recognisable in the sky primarily through its position within the constellation Aqr. This constellation is characterized by its distinct pattern of bright and dimmer stars, offering a relatively stable and safe point of view. Unlike many other stars in its constellation, Sadalmeldik doesn't exhibit strong seasonal changes or unique visual characteristics, offering a consistent and reliable target for observation. Its position within Aqr allows for an easily recognized silhouette, making it a significant landmark for astronomical enthusiasts.

Given its estimated distance of 659.5 light years, Sadalmelik is a relatively faint star. The star's estimated parallax of 4.945 mas is significantly lower than the expected values for a star its magnitude, and therefore indicates that the star is, to some extent, moving across the sky. Its projected position indicates that it exists within the lower part of Aqr’s field of view.

Historically, observers utilized the celestial mechanics of the Aqr constellation to pinpoint locations of stars and further locate specific phenomena. The relatively low magnitude and stable arrangement make it useful for astronomers to mark and trace a certain position within their observations.

How to see it

Sadalmelik has a visual magnitude of about 2.73: under a reasonably dark sky it is typically reachable with the unaided eye.

Sky position

Equatorial coordinates for Sadalmelik: right ascension 22h 5m 47s, declination −0° 19′ 12″ (J2000), on the celestial sphere.

Catalog context

Sadalmelik. It appears in classical and modern catalogs as Bayer/Flamsteed designation 34Alp Aqr, HIP 109074, HD 209750, Gaia DR3 2680356911816018048.

Catalog identifiers

Gaia

Gaia DR3 2680356911816018048

HIP

109074

HD

209750

gaia_dr3

2680356911816018048

Bayer / Flamsteed

34Alp Aqr

Observed properties

Visual magnitude

2.73