One verse

Srimad Bhagavatam 5.24.2

5.24.2

यददस्तरणेर्मण्डलं प्रतपतस्तद्विस्तरतो योजनायुतमाचक्षते द्वादशसहस्रं सोमस्य त्रयोदशसहस्रं राहोर्य: पर्वणि तद्‌व्य‍वधानकृद्वैरानुबन्ध: सूर्याचन्द्रमसावभिधावति ॥ २ ॥

yad adas taraner mandalam pratapatas tad vistarato yojanayutam acaksate dvadasa-sahasram somasya trayodasa-sahasram rahor yah parvani tad-vyavadhana-krd vairanubandhah surya-candramasav abhidhavati.

yat
which
adah
that
taraneh
of the sun
mandalam
globe
pratapatah
which is always distributing heat
tat
that
vistaratah
in terms of width
yojana
a distance of eight miles
ayutam
ten thousand
acaksate
they estimate
dvadasa-sahasram
20,000 yojanas (160,000 miles)
somasya
of the moon
trayodasa
thirty
sahasram
one thousand
rahoh
of the planet Rahu
yah
which
parvani
on occasion
tat-vyavadhana-krt
who created an obstruction to the sun and moon at the time of the distribution of nectar
vaira-anubandhah
whose intentions are inimical
surya
the sun
candramasau
and the moon
abhidhavati
runs after them on the full-moon night and the dark-moon day

The sun globe, which is a source of heat, extends for 10,000 yojanas (80,000 miles). The moon extends for 20,000 yojanas (160,000 miles), and Rahu extends for 30,000 yojanas (240,000 miles). Formerly, when nectar was being distributed, Rahu tried to create dissension between the sun and moon by interposing himself between them. Rahu is inimical toward both the sun and the moon, and therefore he always tries to cover the sunshine and moonshine on the dark-moon day and full-moon night.