Local System and Draper Extension 65
made up to the present time in this supplementary survey,
which will extend the Henry Draper Catalogue in certain
regions down to magnitude 11.5 or 12. The increase of
Table II
Regions Covered by the Henry Draper
Extension
|
Region |
Approximate |
Number |
Approx- |
Remarks | ||
|
h |
O | |||||
|
ɪ. |
Cygnus........ |
20 |
+37 |
4,000 |
80 |
Published |
|
2. |
Cygnus....... |
19.2 |
+ 23 |
13,082 |
220 |
Unpublished |
|
3∙ |
Aquila........ |
19∙1 |
+ 14.8 |
2,800 |
13° |
Published |
|
4∙ |
Cambridge catalogue...... |
... |
4,200 |
i,090 |
Published; Gesellschaft | |
|
5∙ |
Helsingfors- Gotha catalogue |
... |
4,200 |
94O |
Published; Gesellschaft | |
|
6. |
Sagittarius..... |
16.8 |
-33 |
15,269 |
4OO |
Unpublished |
|
7∙ |
North Galactic Pole.......... |
12.6 |
+ 27 |
4,351 |
975 |
Unpublished |
|
8. |
Taurus, Orion, |
6 |
+ 18 |
28,100 |
900 |
Published |
|
9∙ |
Orion......... |
6 |
- ɪ-ʒ |
8,138 |
210 |
Unpublished |
|
io. |
Taurus........ |
4 |
+30 |
12,095 |
215 |
Unpublished |
|
XI. |
Large Magel- |
5 |
-69∙S |
2,IOO |
35 |
Unfinished |
|
98,335 |
5,i95 | |||||