Universal
The back contains a universal with a De
Rojas projection. The universal contains the following:
|
Angle of inclination |
Direction of inclination |
Labelled |
Language |
Script |
Line style |
Notes |
| Tropic of Cancer |
|
N/A |
|
|
|
Plain |
|
| Tropic of Capricorn |
|
N/A |
|
|
|
Plain |
|
| Arctic circle |
|
N/A |
HORE ANTE MERIDIEM |
Latin |
Square capitals |
Plain |
The circle (often represented as a line or arc) at
66.5°. These are commonly found on universal
projections |
| Arctic circle |
|
N/A |
HORE POST MERIDIEM |
Latin |
Square capitals |
Plain |
The circle (often represented as a line or arc) at
66.5°. These are commonly found on universal
projections |
| Ecliptic |
23 |
Top-right/bottom-left |
|
|
|
Plain |
|
The universal contains the following meridians:
| Interval |
Style of line |
Number style |
Description |
| 5° |
Plain |
European Modern |
The central meridian is marked with the zodiacal
symbols. Every hour, i.e., 15°, is dotted. Meridians are
engraved only between the arctic cirlces, i.e.,
66.5° |
The universal contains the following parallels:
| Range |
Interval |
Style of line |
Number style |
Description |
| |
2° |
Plain |
European Modern |
|
The universal contains scales of the following types:
| Type |
Range & Units |
Numbered |
Geometry |
Location |
| Degree |
0 - 90, Degrees |
Every 10 degrees |
Circular, concentric |
None |
Stars
The universal contains the following stars.
Click on the star name or modern star name to search for
other astrolabes with the same star.
Star name
(on instrument) |
Modern star
(if known) |
Mediation |
Declination |
Pointer |
| LVCIDA HIDRA |
Alphard |
N/A |
N/A |
engraved |
| ARCTVRVS |
Arcturus |
N/A |
N/A |
engraved |
| CANIS MAIOR |
Sirius |
N/A |
N/A |
engraved |
| CAVDA LEONIS |
Denebola |
N/A |
N/A |
engraved |
| CIGNVS |
|
N/A |
N/A |
engraved |
| OCVLVS TAVRI |
Aldebaran |
N/A |
N/A |
engraved |
| EXT CAVDA VRS MAI |
|
N/A |
N/A |
engraved |
| AQVILA |
Altair |
N/A |
N/A |
|
| COR LEO |
Regulus |
N/A |
N/A |
engraved |
| CAVDA CAPRICORNI |
|
N/A |
N/A |
engraved |
| CANIS MINOR |
Procyon |
N/A |
N/A |
engraved |
| SPICA VIRGINIS |
Spica |
N/A |
N/A |
engraved |
| COR SCORPII |
Antares |
N/A |
N/A |
engraved |
