# Deep Exploration of the Planets HR 8799 b, c, and d with Moderate-resolution Spectroscopy

> Research article (The Astronomical Journal, 2021) · cited 61× · AI/ML

**Wikidata**: [openalex:W3199463211](https://www.wikidata.org/wiki/openalex:W3199463211)  
**Source**: https://4ort.xyz/entity/deep-exploration-of-the-planets-hr-8799-b-c-and-d-with-moderate-resolution-spectroscopy