Nantucket Maria Mitchell Association and Nantucket Lights Releases Report on the Nantucket Sky Quality Monitoring Project

February 7, 2025

NANTUCKET, MA—– The Maria Mitchell Association (MMA) and Nantucket Lights are pleased to release the Nantucket Sky Quality Monitoring Project (SQM) report by Dark Sky Consulting, LLC. The joint program, launched in 2022, involves collecting night-sky brightness data from around Nantucket Island from citizen-scientists using handheld Unihedron Sky Quality Meters (SQMs) as measurement devices to study light pollution.

 

Observations were made from June 2022 to November 2024 at eight sites (Nantucket Town; Madaket Beach; Nantucket Elementary School; Nantucket Memorial Airport; Altar Rock; 'Sconset; Wauwinet; and Surfside Beach), a ninth site (Cisco Beach) was added in August 2024, for which only three months of data are available. These efforts establish a baseline for assessing the effectiveness of actions to mitigate light pollution going forward.

 

The distributions separate into two broad populations (high development: Nantucket Town; Nantucket Elementary School; and Nantucket Airport) and low/no development: (Madaket; Sconset; Wauwinet’; Surfside Beach; Cisco Beach; and Altar Rock). The darkest readings among the latter tend to occur in spring and summer. For high-development sites, the width of the distribution increases distinctly in summer and its mean shifts toward brighter values. We interpret this as due to an increased population on the island during the summer season.

 

 

 

The group follows the data collection procedure recommended by DarkSky International. Readings are taken under conditions intended to minimize interference from environmental influences. For example, reading does not commence until the end of astronomical twilight, which occurs about 90 minutes after sunset. Observers are encouraged to report only data taken under conditions of clear skies, which is sometimes not possible due to the vagaries of Nantucket weather. Additionally, they avoid obtaining data when the Moon is above the horizon to limit the contaminating effect of its light. Readings are taken after the conclusion of astronomical twilight during the week between the last-quarter and new Moon phases.

 

Analysis of the night-sky brightness measurements since 2022 show that the data are broadly valid and reproducible, and that outlier values can largely be explained by the influence of environmental conditions. Distributions of measurements across various cuts (location, year) are normal as expected for random sampling of the assumed underlying “populations” of night-sky brightness values. And there is not a great deal of night-sky brightness variation from one year to the next, either on a per-site basis or island-wide. From this, we can broadly conclude that light emissions on Nantucket have, in recent years, increased only at a very slow rate. The Nantucket Dark Sky Monitoring Project continues to be monitored, and data is being collected and analyzed.

 

You can find more detailed information on the Nantucket Island Night Sky Quality Report here:
 
Nantucket-Report-FINAL-250123.pdf


Nantucket-Annex-FINAL-250123.pdf


The Maria Mitchell Association was founded in 1902 to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. After she discovered a comet in 1847, Mitchell’s international fame led to many achievements and awards, including an appointment as the first female professor of astronomy at Vassar College. Maria Mitchell believed in “learning by doing” and today that philosophy is reflected in the MMA’s mission statement, programs, research projects, and other activities. The Maria Mitchell Association operates two observatories, a natural science museum, an aquarium, a research center, and preserves the historic birthplace of Maria Mitchell. A wide variety of science and history-related programming is offered throughout the year for people of all ages


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For Immediate Release

February 7, 2025

Contact: Joanna Roche

jroche@mariamitchell.org

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PEACE

By Jascin N. Leonardo Finger • January 5, 2026
As Walt Whitman once wrote, “Peace is always beautiful.” Peace can mean many different things. I have used this Whitman quote above before – my Father loved Whitman. And when I quote Whitman, it makes me feel like my Father is here. Maria and her father, William, were close. In fact, even with a large family of twelve people, the Mitchells were all close. My family is close as well, though we have our moments as most, if not all, families do. As we bring to a close another difficult year in which the world and its people continue to struggle, take a moment to be thankful and to find and give peace. May you always find peace in yourself and peace with others. May our world become more peaceful and may we all learn that this small space we inhabit is shared and meant for everyone. In the echoes of one of my favorite Maria Mitchell quotes, your small step, your small gesture to another or towards helping something happen, can make a difference – more than you think. I’ll end with another quote – and a poem I have used the last few years – that is fitting and that also reminds me of another Whitman poem. JNLF In Memoriam, [Ring out, wild bells] Alfred, Lord Tennyson - 1809-1892  Ring out, wild bells, to the wild sky, The flying cloud, the frosty light: The year is dying in the night; Ring out, wild bells, and let him die. Ring out the old, ring in the new, Ring, happy bells, across the snow: The year is going, let him go; Ring out the false, ring in the true. Ring out the grief that saps the mind For those that here we see no more; Ring out the feud of rich and poor, Ring in redress to all mankind. Ring out a slowly dying cause, And ancient forms of party strife; Ring in the nobler modes of life, With sweeter manners, purer laws. Ring out the want, the care, the sin, The faithless coldness of the times; Ring out, ring out my mournful rhymes But ring the fuller minstrel in. Ring out false pride in place and blood, The civic slander and the spite; Ring in the love of truth and right, Ring in the common love of good. Ring out old shapes of foul disease; Ring out the narrowing lust of gold; Ring out the thousand wars of old, Ring in the thousand years of peace. Ring in the valiant man and free, The larger heart, the kindlier hand; Ring out the darkness of the land, Ring in the Christ that is to be.

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Nantucket Maria Mitchell Association Announces Strategic Property Acquisition and Appointment of Workshop/APD

December 30, 2025
NANTUCKET, MA—The Maria Mitchell Association (MMA) is pleased to announce two significant milestones in its ongoing Capital Campaign: the acquisition of three properties adjacent to its historic campus, and the appointment of Workshop/APD as the architectural firm leading the design of its future facilities. After more than two years of discussion and planning, the MMA has acquired the Noyes family property, which includes 27 and 25R Washington Street and 10 Coffin Street, for $2.5 million. This acquisition secures critical land and housing that will play a vital role in advancing the Association’s long-term campus plan and mission-driven growth. “This is a game-changing moment for the Maria Mitchell Association and for Nantucket,” said Joanna Roche, Executive Director, Maria Mitchell Association. “The acquisition allows us to thoughtfully expand our campus while deepening our ability to serve the community through science, history, and education.” The acquisition also carries deep historical significance. The Noyes family’s relationship with the Maria Mitchell Association dates to the 1980s, when Robert Noyes served as President of the Board and volunteered extensively on behalf of the organization. The partnership represents a meaningful legacy and a full-circle moment for both the family and the Association. In addition, the Maria Mitchell Association has selected Andrew Kotchen, Michael Luft-Weissberg and the Workshop/APD team to serve as architects for the project. Workshop/APD is a nationally recognized architecture firm with more than 25 years of experience working on Nantucket. Known for its thoughtful, context-sensitive design, the firm brings a deep understanding of the island’s architectural heritage and environmental landscape. “I am truly excited to create this lasting legacy to Maria Mitchell and to this community,” said Andrew Kotchen, founding principal of Workshop/APD. “This project offers a unique opportunity to provide a view into the nature and science of this island while honoring its history and sense of place.” With the property acquisition complete and Workshop/APD in place, the Maria Mitchell Association is prepared to advance into the next phase of the project. Engineering will be led by Nantucket Surveyors, construction oversight by Board Vice President John Wise, and architectural design by Workshop/APD. Over the coming months, the MMA will finalize campus plans incorporating the newly acquired properties, complete updated surveys, and begin the permitting process. Founded in 1902, the Maria Mitchell Association is dedicated to the legacy of astronomer Maria Mitchell Founded in 1902, the Maria Mitchell Association is dedicated to the legacy of astronomer Maria Mitchell through education, research, and preservation in astronomy, natural sciences, and history. The Association’s programs serve thousands of learners annually and inspire curiosity, scientific inquiry, and stewardship of Nantucket’s unique environment. For more information about the Capital Campaign and the future of the Maria Mitchell Association, visit www.mariamitchell.org . ###
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