बृहत्संहिता (आचार्य वराहमिहिर - स्थापत्य, खगोल, मौसम व जल विज्ञान)

22 बृहत्संहितायाम् [Adh. III. Sl. 1-4
आदित्यचारः ॥३॥ The Sun.
आश्लेषार्द्धाद्दक्षिणमुत्तरमयनं रवेर्धनिष्ठाद्यम् ।
नूनं कदाचिदासीद्येनोक्तं पूर्वशास्त्रेषु ॥१॥
Sloka 1.—The Sun’s southern course began at one
time from the latter half of Aslesha and the northern,
from the beginning of Dhanishta. This must indeed have
been the case as it is so recorded in our ancient Sastras.
साम्प्रतमयनं सवितुः कर्कटकाद्यं मृगादितश्चान्यत् ।
उक्ताभावो विकृतिः प्रत्यक्षपरीक्षणैर्व्यक्तिः ॥२॥
दूरस्थचिह्नवेधादुदयेऽस्तमयेऽपि वा सहस्रांशोः ।
छायाप्रवेशनिर्गमचिह्नैर्वा मण्डले महति । ३॥
Slokas 2-3.—At present, one course of the Sun begins
from the commencement of Karkataka and the other from
the beginning of Makara. That it is different from what
has been stated above can easily be ascertained by direct
observation.
By marking every day the position of an object situ-
ated at a distance at the time of the rising or setting of
the Sun, or watching the entry and exit of the brim of
the shadow of a stick placed at the centre of a big circle
drawn on the Earth, the difference in the Sun’s course
may be detected.
अप्राप्य मकरमर्को विनिवृत्तो हन्ति सापरां याम्याम् ।
कर्कटकमसम्प्राप्तो विनिवृत्तश्चोत्तरां सैन्द्रीम् ॥४॥
Sloka 4.—When the Sun retraces his steps before he
has reached Makara and changes his direction, he destroys
the West and the South. When he similarly changes his
course without reaching Karkataka, he brings evil to the
North and the East.