stellar evolution models; we find satisfactory agreement. At present, the SSPP underestimates \[Fe/H\] for near-solar-metallicity stars, represented by members of M 67 in this study, by $\sim$ 0.3 dex.
author:
- 'Young Sun Lee, Timothy C. Beers, Thirupathi Sivarani'
- 'Jennifer A. Johnson, Deokkeun An'
- Ronald Wilhelm
- 'Carlos Allende Prieto, Lars Koesterke'
- Paola Re Fiorentin
- 'Coryn A.L. Bailer-Jones'
- 'John E. Norris'
- Brian Yanny
- Constance Rockosi
- 'Heidi J. Newberg'
- 'Kyle M. Cudworth'
- Kaike Pan
- 
title: 'The SEGUE Stellar Parameter Pipeline. II. Validation with Galactic Globular and Open Clusters'
---

Introduction
============

The Sloan Extension for Galactic Understanding and Exploration (SEGUE) is one of three key projects (LEGACY, SUPERNOVA SURVEY, and SEGUE) in the current extension of the Sloan Digital Sky Survey, known collectively as SDSS-II. The SEGUE program is in the process of obtaining $ugriz$ imaging of some 3500 square degrees of sky outside of the SDSS-I footprint (Fukugita et al. 1996; Gunn et al. 1998, 2006; York et al. 2000; Stoughton et al. 2002; Abazajian et al. 2003, 2004, 2005; Pier et al. 2003), with special attention being given to scans of lower Galactic latitudes ($|b|$ $<$ 35$^{\circ}$) in 