DASCH: Digital Access to a Sky Century @ Harvard
A New Look at the Temporal Universe

Plate Information for b20678

Observatory NameArequipa
W. Longitude (deg)71.55
Latitude (deg)-16.375
Aperture (m)0.2
Scale (arcsec/mm)179.4
Telescope8-inch Bache Doublet, Voigtlander, reworked by Clark
Plate Class L
Photograph of the Plate JacketView the Plate Jacket (8.8MB).
Photograph of Plate AnnotationsView the Plate Annotations (11.3MB).


Plate Exposure Information
Exposure Number0
Exposure Time (minutes) 270.00
Right Ascension00:53:29.394
Declination-73:26:43.67
Geocentric Date1897-10-29T03:30:17.5
JD: 2414226.64604
Heliocentric Date1897-10-29T03:30:30.0
HJD: 2414226.64618
Plate Center SourceLogbook
Date SourceLogbook
Exposure NotesSmall_Mg._Cl
Time Accuracy (days)0.0007


Raw Logbook Data - View the Logbook Page (0.5MB)
Exposure Number0
Exposure Time (minutes)
Right Ascension0 50
declination-74
DateOct 28 1897
Exposure Start Time23 00
Exposure Stop Time3 30
Exposure Hour Angle1 50 E
Logbook Remark
Logbook Noteschecked
Error Type


No plate condition records present in the stacks database.


Plate Events Table
DateVersion IDPicked StatusStack LocationEvent NotesValid
2016-07-05T12:01:131Pickedyes
2016-09-08T15-38-281Jacket JPEGyes
2016-09-08T15-40-401Plate JPEGyes
2017-02-23T12-11-471Jacket JPEGyes
2017-02-23T12-13-181Plate JPEGyes