Cross-Referencing MK5(SAO) & BD-HD Numbers with Constellations, NGCs & ICs

  • Thread starter Philosophaie
  • Start date
  • Tags
    Numbers
In summary, cross-referencing MK5(SAO) & BD-HD numbers with constellations, NGCs & ICs allows astronomers to accurately identify and locate celestial objects in the night sky. These numbers are assigned by different catalogs based on the coordinates and location of the objects. NGCs and ICs are additional cataloging systems that provide a more comprehensive list of objects for cross-referencing. Astronomers use this method to study the properties and characteristics of celestial objects and gather more information about them. However, there may be challenges and limitations, such as not all objects having assigned numbers and differences in naming or designation among catalogs.
  • #1
Philosophaie
462
0
I have a comprehensive list of MK5(SAO) and BD-HD numbers with RA2000, DEC2000, Proper Motions and etc.

I want to equate the MK5(SAO) and BD-HD numbers with Constellation Designations(delta Ori, gamma Tau), NGC and IC Numbers.

I have tried:

http://simbad.u-strasbg.fr/simbad/sim-fid
http://tdc-www.harvard.edu/software/wcstools/scat/

Found some but need more stars with MK5 and Constellation Designations at 10 or below magnitude to complete my list:

http://www.starxref.com/data/alpha_star_names.htm
 
Astronomy news on Phys.org

1. What is the purpose of cross-referencing MK5(SAO) & BD-HD numbers with constellations, NGCs & ICs?

The purpose of cross-referencing these numbers is to accurately identify and locate celestial objects in the night sky. These numbers provide a unique identifier for each object, allowing astronomers to easily communicate and share information about them.

2. How are MK5(SAO) & BD-HD numbers assigned to celestial objects?

MK5(SAO) numbers are assigned by the Smithsonian Astrophysical Observatory (SAO) and BD-HD numbers are assigned by the Bonner Durchmusterung and Henry Draper catalogs. These numbers are based on the coordinates of the objects and their location within a specific constellation.

3. What are NGCs and ICs in relation to cross-referencing celestial objects?

NGCs (New General Catalogue) and ICs (Index Catalogue) are additional cataloging systems for identifying and organizing celestial objects. They include objects that were not included in the MK5(SAO) and BD-HD catalogs, providing a more comprehensive list of objects for cross-referencing.

4. How do astronomers use cross-referencing to study celestial objects?

Astronomers use cross-referencing to accurately locate and identify objects in the night sky. This allows them to study the properties and characteristics of these objects, such as their distance, size, and composition. By cross-referencing with different catalogs, astronomers can also gather more information about the objects and their place in the universe.

5. Are there any challenges or limitations to cross-referencing MK5(SAO) & BD-HD numbers with constellations, NGCs & ICs?

One challenge is that not all celestial objects have been assigned MK5(SAO) or BD-HD numbers, especially for objects outside of our own galaxy. In addition, some objects may have different names or designations in different catalogs, making the cross-referencing process more complicated. However, advancements in technology and data sharing have made cross-referencing more accurate and efficient in recent years.

Back
Top