Telescope Data Center Harvard Plate Collection Harvard-Smithsonian Center for Astrophysics
 Harvard Observatory Plate Stacks
RH Series Characteristics

Basics
Plate Size Plate Scale Telescope Focal Length
8x10 391"/mm 3-inch Ross Fecker 21 inches

Observatory
Plate nos.LocationDates
1-4468Cambridge, Massachusetts1928-01-01 - 1932-08-26
4469-16178Oak Ridge, Massachusetts1932-08-27 - 1963-09-01

Online Searchable catalog

 		all-sky map
Maps of spatial and temporal distribution 		histogram by year
Histogram by year

Filed
Plate SizeLocationNumbers
8x10first floor, Patrol Series 1all

Record Books:

 		(20) 1-16178
Online: [01] [02] [03] [04] [05] [06] [07] [08] [09] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
(Record sheets for 4629-16178)

Comments:

 Note that the scale of the RB and RH is nearly the same as the Smithsonian Atlas.

Photographs for three programs:
I. Patrol, exposure about 60 min.
II. "T Program" - extra focal polar comparisons, covering the whole northern sky down to +10? with 4 plates of each region. Limiting magnitude about 8.5
III. A small number of red plates on the North Pole.