7 Andromedae and Henry Draper Catalogue

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between 7 Andromedae and Henry Draper Catalogue

7 Andromedae vs. Henry Draper Catalogue

7 Andromedae (abbreviated 7 And) is a star in the constellation Andromeda. The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.

Similarities between 7 Andromedae and Henry Draper Catalogue

7 Andromedae and Henry Draper Catalogue have 2 things in common (in Unionpedia): Apparent magnitude, Durchmusterung.

Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

7 Andromedae and Apparent magnitude · Apparent magnitude and Henry Draper Catalogue · See more »

Durchmusterung

In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.

7 Andromedae and Durchmusterung · Durchmusterung and Henry Draper Catalogue · See more »

The list above answers the following questions

What 7 Andromedae and Henry Draper Catalogue have in common
What are the similarities between 7 Andromedae and Henry Draper Catalogue

7 Andromedae and Henry Draper Catalogue Comparison

7 Andromedae has 9 relations, while Henry Draper Catalogue has 31. As they have in common 2, the Jaccard index is 5.00% = 2 / (9 + 31).

References

This article shows the relationship between 7 Andromedae and Henry Draper Catalogue. To access each article from which the information was extracted, please visit:

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