Is it deer resistant?

Yes

Golden Aster is deer resistant.

Chrysopsis mariana

Deer: Rarely
Height: 2 ft (61 cm)
Spread: 2 ft (61 cm)
Zones: 4–10
Light: Full sun

Biennial
Perennial
Wildflower

Golden Aster (Chrysopsis mariana)

Photo: Barnes Dr Thomas G, U.S. Fish and Wildlife Service · Public domain

Also called Maryland Aster, Maryland Golden-Aster

Perennial Chrysopsis

More details

Light: Full sun, Partial shade
Water: Low, Medium
Type: Biennial, Perennial, Wildflower
Maintenance: Low, Medium
Growth: Medium
Bloom: Fall, Summer
Features: Drought tolerant, Flowering, Native
Best uses: Border, Meadow, Naturalized, Woodland