Henry Draper Extension
E564027
The Henry Draper Extension is an expanded supplement to the original Henry Draper Catalogue that adds spectral classifications for additional stars beyond those in the initial compilation.
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical catalog
ⓘ
stellar catalog ⓘ |
| basedOn | photographic stellar spectra ⓘ |
| catalogs |
faint stars
ⓘ
southern hemisphere stars ⓘ |
| compiledAt | Harvard College Observatory NERFINISHED ⓘ |
| contains |
Henry Draper numbers for stars
ⓘ
star positions ⓘ stellar magnitudes ⓘ stellar spectral types ⓘ |
| contributor | Harvard Computers NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| dataType | observational astronomy data ⓘ |
| editor |
Annie Jump Cannon
NERFINISHED
ⓘ
Margaret W. Mayall NERFINISHED ⓘ |
| extends | list of stars in Henry Draper Catalogue ⓘ |
| field |
astronomy
ⓘ
astrophysics ⓘ |
| follows | Henry Draper Catalogue NERFINISHED ⓘ |
| fundedBy |
Anna Palmer Draper
NERFINISHED
ⓘ
Henry Draper Memorial fund NERFINISHED ⓘ |
| hasPart | Henry Draper Extension Charts NERFINISHED ⓘ |
| language | English ⓘ |
| medium | printed catalog ⓘ |
| namedAfter | Henry Draper NERFINISHED ⓘ |
| partOf | Henry Draper Catalogue project NERFINISHED ⓘ |
| publisher | Harvard College Observatory NERFINISHED ⓘ |
| subject |
stars
ⓘ
stellar spectra ⓘ stellar spectral classification ⓘ |
| timePeriodCovered | early 20th century stellar observations ⓘ |
| usedFor |
Galactic structure research
ⓘ
cross-identification in modern star catalogs ⓘ stellar population studies ⓘ variable star identification ⓘ |
| uses | Harvard spectral classification system NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.