Śrīmad-Bhāgavatam 5.21.15
రథనీడస్తు షట్త్రింశల్లక్షయోజనాయతస్తత్తురీయభాగవిశాలస్తావాన్ రవిరథయుగో యత్ర హయాశ్ఛన్దోనామాన: సప్తారుణయోజితా వహన్తి దేవమాదిత్యమ్ ॥ ౧౫ ॥
ratha-nīḍas tu ṣaṭ-triṁśal-lakṣa-yojanāyatas tat-turīya-bhāga-viśālas tāvān ravi-ratha-yugo yatra hayāś chando-nāmānaḥ saptāruṇa-yojitā vahanti devam ādityam.
[ratha-needas tu shat-trimshal-laksha-yojanaayatas tat-tureeya-bhaaga-vishaalas taavaan ravi-ratha-yugo yatra hayaash chando-naamaanah saptaaruna-yojitaa vahanti devam aadityam.]
Word-for-word
ratha-nīḍaḥ
—
the interior of the chariot
tu
—
but
ṣaṭ-triṁśat-lakṣa-yojana-āyataḥ
—
3,600,000 yojanas long
tat-turīya-bhāga
—
one quarter of that measure (900,000 yojanas)
viśālaḥ
—
having a width
tāvān
—
so much also
ravi-ratha-yugaḥ
—
the yoke for the horses
yatra
—
where
hayāḥ
—
horses
chandaḥ-nāmānaḥ
—
having the different names of Vedic meters
sapta
—
seven
aruṇa-yojitāḥ
—
hooked up by Aruṇadeva
vahanti
—
carry
devam
—
the demigod
ādityam
—
the sun-god.
Blended reading (Sanskrit + English inline)
ratha-nīḍas tu ṣaṭ-triṁśal-lakṣa-yojanāyatas tat-turīya-bhāga-viśālas tāvān ravi-ratha-yugo yatra hayāś chando-nāmānaḥ saptāruṇa-yojitā vahanti devam ādityam.
ratha-nīḍaḥ
the interior of the chariot
tu
but
ṣaṭ-triṁśat-lakṣa-yojana-āyataḥ
3,600,000 yojanas long
tat-turīya-bhāga
one quarter of that measure (900,000 yojanas)
viśālaḥ
having a width
tāvān
so much also
ravi-ratha-yugaḥ
the yoke for the horses
yatra
where
hayāḥ
horses
chandaḥ-nāmānaḥ
having the different names of Vedic meters
sapta
seven
aruṇa-yojitāḥ
hooked up by Aruṇadeva
vahanti
carry
devam
the demigod
ādityam
the sun-god.
My dear King, the carriage of the sun-god’s chariot is estimated to be 3,600,000 yojanas [28,800,000 miles] long and one-fourth as wide [900,000 yojanas, or 7,200,000 miles]. The chariot’s horses, which are named after Gāyatrī and other Vedic meters, are harnessed by Aruṇadeva to a yoke that is also 900,000 yojanas wide. This chariot continuously carries the sun-god.
Purport
In the Viṣṇu Purāṇa it is stated:
gāyatrī ca bṛhaty uṣṇig jagatī triṣṭup eva ca anuṣṭup paṅktir ity uktāś chandāṁsi harayo raveḥ
The seven horses yoked to the sun-god’s chariot are named Gāyatrī, Bṛhati, Uṣṇik, Jagatī, Triṣṭup, Anuṣṭup and Paṅkti. These names of various Vedic meters designate the seven horses that carry the sun-god’s chariot.
— A.C. Bhaktivedanta Swami Prabhupāda
Gauḍīya Ācāryas
Viśvanātha Cakravartī Ṭhākura
Gauḍīya
Translation
O King! The carriage of the sun-god's chariot is estimated to be 3,600,000 yojanas long and one-fourth as wide (900,000 yojanas). The chariot's horses, which are named after Gāyatrī and other Vedic meters, are harnessed by Aruṇadeva to a yoke that is also 900,000 yojanas wide. This chariot continuously carries the sun-god.
Niḍāḥ is the enclosure on the chariot. It is 3600,000 yojanas high and 900,000 wide. The sun god is situated in the enclosure at a place 40,000 yojanas above the wheel. It is yoked by Aruṇa and pulled by horses named after the Vedic meters like Gayatrī.
My note
Source: vedabase.io