Hamburg/ESO Survey Browser Service

The Hamburg/ESO survey (HES) is a digital objective prism survey covering the total southern extragalactic sky. It is based on Kodak IIIa-J plates which have been taken with the 1m ESO Schmidt telescope and its 4° prism. The spectral coverage is 3200-5300 Å, at an resolution of 15 Å at H gamma. The magnitude range covered is roughly between 18.5 and 11 mag in B_J.

This is a collection of uniformly reduced spectra prepared by Norbert Christlieb. It is also intended as a sort-of resolver for HES names (“identifiers“) like ”HE 2301-7732” (these are B1950 coordinates) or “HE000000m090649d2856” (these are J2000). The shorter form usually matches multiple objects, and you will need to apply domain knowledge in order to find the object actually being referred to when resolving a short HE identifier.

Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object
Search radius in arcminutes
[?char expr.]
HES designation, consisting of the letters 'HE', the first four digits of the right ascension at equinox B1950.0, and the first four digits of the declination at equinox B1950.0. Example: HE 2301-7732.
[?char expr.]
Alternative, more precise HES identifier consisting of the letters 'HE', the first six digits of the right ascension at equinox 2000.0, the first six digits of the declination at equinox 2000.0, the plate quarter (a, b, c, or d), and the HES plate number. Example: For HE 0107−5240, which is located on quarter c of plate 2052 and at coordinates α = 01h09m29s.1, δ = −52◦24'34'', the HESid is HE0109291m522434c2052.
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