Declension table of ?sūryāstaṅgamana

Neuter	Singular	Dual	Plural
Nominative	sūryāstaṅgamanam	sūryāstaṅgamane	sūryāstaṅgamanāni
Vocative	sūryāstaṅgamana	sūryāstaṅgamane	sūryāstaṅgamanāni
Accusative	sūryāstaṅgamanam	sūryāstaṅgamane	sūryāstaṅgamanāni
Instrumental	sūryāstaṅgamanena	sūryāstaṅgamanābhyām	sūryāstaṅgamanaiḥ
Dative	sūryāstaṅgamanāya	sūryāstaṅgamanābhyām	sūryāstaṅgamanebhyaḥ
Ablative	sūryāstaṅgamanāt	sūryāstaṅgamanābhyām	sūryāstaṅgamanebhyaḥ
Genitive	sūryāstaṅgamanasya	sūryāstaṅgamanayoḥ	sūryāstaṅgamanānām
Locative	sūryāstaṅgamane	sūryāstaṅgamanayoḥ	sūryāstaṅgamaneṣu

Compound sūryāstaṅgamana -

Adverb -sūryāstaṅgamanam -sūryāstaṅgamanāt